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Finding the Fourth Proportional to 40,061.25, 60,092.69 and 12,359.25

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Solution

The fourth proportional to 40,061.25, 60,092.69 and 12,359.25 is: 18,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,061.25 : 60,092.69 = 12,359.25 : x
  2. Step 2: Convert to fraction form
    40,061.25/60,092.69 = 12,359.25/x
  3. Step 3: Cross multiply
    40,061.25x = 60,092.69 × 12,359.25
  4. Step 4: Simplify right side
    40,061.25x = 742,700,517.09
  5. Step 5: Solve for x
    x = 742,700,517.09/40,061.25
  6. Step 6: Final answer
    x = 18,539.12

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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.