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Finding the Fourth Proportional to 61,593.88, 92,382.81 and 19,478.20

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Solution

The fourth proportional to 61,593.88, 92,382.81 and 19,478.20 is: 29,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,593.88 : 92,382.81 = 19,478.20 : x
  2. Step 2: Convert to fraction form
    61,593.88/92,382.81 = 19,478.20/x
  3. Step 3: Cross multiply
    61,593.88x = 92,382.81 × 19,478.20
  4. Step 4: Simplify right side
    61,593.88x = 1,799,450,849.74
  5. Step 5: Solve for x
    x = 1,799,450,849.74/61,593.88
  6. Step 6: Final answer
    x = 29,214.77

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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.