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Finding the Fourth Proportional to 71,792.80, 99,073.20 and 41,984.80

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Solution

The fourth proportional to 71,792.80, 99,073.20 and 41,984.80 is: 57,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.80 : 99,073.20 = 41,984.80 : x
  2. Step 2: Convert to fraction form
    71,792.80/99,073.20 = 41,984.80/x
  3. Step 3: Cross multiply
    71,792.80x = 99,073.20 × 41,984.80
  4. Step 4: Simplify right side
    71,792.80x = 4,159,568,487.36
  5. Step 5: Solve for x
    x = 4,159,568,487.36/71,792.80
  6. Step 6: Final answer
    x = 57,938.52

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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.