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Finding the Fourth Proportional to 60,513.80, 90,770.70 and 57,792.20

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Solution

The fourth proportional to 60,513.80, 90,770.70 and 57,792.20 is: 86,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,513.80 : 90,770.70 = 57,792.20 : x
  2. Step 2: Convert to fraction form
    60,513.80/90,770.70 = 57,792.20/x
  3. Step 3: Cross multiply
    60,513.80x = 90,770.70 × 57,792.20
  4. Step 4: Simplify right side
    60,513.80x = 5,245,838,448.54
  5. Step 5: Solve for x
    x = 5,245,838,448.54/60,513.80
  6. Step 6: Final answer
    x = 86,688.30

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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.