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Finding the Fourth Proportional to 63,807.40, 95,724.92 and 19,432.96

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Solution

The fourth proportional to 63,807.40, 95,724.92 and 19,432.96 is: 29,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,807.40 : 95,724.92 = 19,432.96 : x
  2. Step 2: Convert to fraction form
    63,807.40/95,724.92 = 19,432.96/x
  3. Step 3: Cross multiply
    63,807.40x = 95,724.92 × 19,432.96
  4. Step 4: Simplify right side
    63,807.40x = 1,860,218,541.36
  5. Step 5: Solve for x
    x = 1,860,218,541.36/63,807.40
  6. Step 6: Final answer
    x = 29,153.65

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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.