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Finding the Fourth Proportional to 63,841.28, 88,148.48 and 38,724.80

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Solution

The fourth proportional to 63,841.28, 88,148.48 and 38,724.80 is: 53,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,841.28 : 88,148.48 = 38,724.80 : x
  2. Step 2: Convert to fraction form
    63,841.28/88,148.48 = 38,724.80/x
  3. Step 3: Cross multiply
    63,841.28x = 88,148.48 × 38,724.80
  4. Step 4: Simplify right side
    63,841.28x = 3,413,532,258.30
  5. Step 5: Solve for x
    x = 3,413,532,258.30/63,841.28
  6. Step 6: Final answer
    x = 53,469.04

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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.