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Finding the Fourth Proportional to 9,035.79, 12,469.05 and 5,258.76

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Solution

The fourth proportional to 9,035.79, 12,469.05 and 5,258.76 is: 7,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,035.79 : 12,469.05 = 5,258.76 : x
  2. Step 2: Convert to fraction form
    9,035.79/12,469.05 = 5,258.76/x
  3. Step 3: Cross multiply
    9,035.79x = 12,469.05 × 5,258.76
  4. Step 4: Simplify right side
    9,035.79x = 65,571,741.38
  5. Step 5: Solve for x
    x = 65,571,741.38/9,035.79
  6. Step 6: Final answer
    x = 7,256.89

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Find fourth proportional to 4,517.90, 6,234.53 and 2,629.38
Half scale
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Double scale
Find fourth proportional to 9,036.79, 12,470.43 and 5,259.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.