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Finding the Fourth Proportional to 60,781.36, 83,849.52 and 39,552.88

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Solution

The fourth proportional to 60,781.36, 83,849.52 and 39,552.88 is: 54,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,781.36 : 83,849.52 = 39,552.88 : x
  2. Step 2: Convert to fraction form
    60,781.36/83,849.52 = 39,552.88/x
  3. Step 3: Cross multiply
    60,781.36x = 83,849.52 × 39,552.88
  4. Step 4: Simplify right side
    60,781.36x = 3,316,490,002.62
  5. Step 5: Solve for x
    x = 3,316,490,002.62/60,781.36
  6. Step 6: Final answer
    x = 54,564.26

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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.