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Finding the Fourth Proportional to 63,687.65, 95,531.48 and 28,586.30

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Solution

The fourth proportional to 63,687.65, 95,531.48 and 28,586.30 is: 42,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,687.65 : 95,531.48 = 28,586.30 : x
  2. Step 2: Convert to fraction form
    63,687.65/95,531.48 = 28,586.30/x
  3. Step 3: Cross multiply
    63,687.65x = 95,531.48 × 28,586.30
  4. Step 4: Simplify right side
    63,687.65x = 2,730,891,490.30
  5. Step 5: Solve for x
    x = 2,730,891,490.30/63,687.65
  6. Step 6: Final answer
    x = 42,879.45

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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.