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Finding the Fourth Proportional to 6,615.13, 9,922.70 and 2,235.66

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Solution

The fourth proportional to 6,615.13, 9,922.70 and 2,235.66 is: 3,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.13 : 9,922.70 = 2,235.66 : x
  2. Step 2: Convert to fraction form
    6,615.13/9,922.70 = 2,235.66/x
  3. Step 3: Cross multiply
    6,615.13x = 9,922.70 × 2,235.66
  4. Step 4: Simplify right side
    6,615.13x = 22,183,783.48
  5. Step 5: Solve for x
    x = 22,183,783.48/6,615.13
  6. Step 6: Final answer
    x = 3,353.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.