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Finding the Fourth Proportional to 63,615.70, 95,387.10 and 19,235.80

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Solution

The fourth proportional to 63,615.70, 95,387.10 and 19,235.80 is: 28,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,615.70 : 95,387.10 = 19,235.80 : x
  2. Step 2: Convert to fraction form
    63,615.70/95,387.10 = 19,235.80/x
  3. Step 3: Cross multiply
    63,615.70x = 95,387.10 × 19,235.80
  4. Step 4: Simplify right side
    63,615.70x = 1,834,847,178.18
  5. Step 5: Solve for x
    x = 1,834,847,178.18/63,615.70
  6. Step 6: Final answer
    x = 28,842.68

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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.