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Finding the Fourth Proportional to 40,061.76, 60,089.76 and 17,877.12

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Solution

The fourth proportional to 40,061.76, 60,089.76 and 17,877.12 is: 26,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,061.76 : 60,089.76 = 17,877.12 : x
  2. Step 2: Convert to fraction form
    40,061.76/60,089.76 = 17,877.12/x
  3. Step 3: Cross multiply
    40,061.76x = 60,089.76 × 17,877.12
  4. Step 4: Simplify right side
    40,061.76x = 1,074,231,850.29
  5. Step 5: Solve for x
    x = 1,074,231,850.29/40,061.76
  6. Step 6: Final answer
    x = 26,814.39

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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.