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Finding the Fourth Proportional to 8,851.70, 13,277.55 and 7,231.70

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Solution

The fourth proportional to 8,851.70, 13,277.55 and 7,231.70 is: 10,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.70 : 13,277.55 = 7,231.70 : x
  2. Step 2: Convert to fraction form
    8,851.70/13,277.55 = 7,231.70/x
  3. Step 3: Cross multiply
    8,851.70x = 13,277.55 × 7,231.70
  4. Step 4: Simplify right side
    8,851.70x = 96,019,258.34
  5. Step 5: Solve for x
    x = 96,019,258.34/8,851.70
  6. Step 6: Final answer
    x = 10,847.55

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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.