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Finding the Fourth Proportional to 63,479.70, 95,243.85 and 28,394.15

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Solution

The fourth proportional to 63,479.70, 95,243.85 and 28,394.15 is: 42,602.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,479.70 : 95,243.85 = 28,394.15 : x
  2. Step 2: Convert to fraction form
    63,479.70/95,243.85 = 28,394.15/x
  3. Step 3: Cross multiply
    63,479.70x = 95,243.85 × 28,394.15
  4. Step 4: Simplify right side
    63,479.70x = 2,704,367,687.26
  5. Step 5: Solve for x
    x = 2,704,367,687.26/63,479.70
  6. Step 6: Final answer
    x = 42,602.09

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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.