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Finding the Fourth Proportional to 59,792.80, 82,478.08 and 38,287.20

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Solution

The fourth proportional to 59,792.80, 82,478.08 and 38,287.20 is: 52,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,792.80 : 82,478.08 = 38,287.20 : x
  2. Step 2: Convert to fraction form
    59,792.80/82,478.08 = 38,287.20/x
  3. Step 3: Cross multiply
    59,792.80x = 82,478.08 × 38,287.20
  4. Step 4: Simplify right side
    59,792.80x = 3,157,854,744.58
  5. Step 5: Solve for x
    x = 3,157,854,744.58/59,792.80
  6. Step 6: Final answer
    x = 52,813.29

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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.