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Finding the Fourth Proportional to 63,613.82, 87,789.80 and 35,319.50

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Solution

The fourth proportional to 63,613.82, 87,789.80 and 35,319.50 is: 48,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,613.82 : 87,789.80 = 35,319.50 : x
  2. Step 2: Convert to fraction form
    63,613.82/87,789.80 = 35,319.50/x
  3. Step 3: Cross multiply
    63,613.82x = 87,789.80 × 35,319.50
  4. Step 4: Simplify right side
    63,613.82x = 3,100,691,841.10
  5. Step 5: Solve for x
    x = 3,100,691,841.10/63,613.82
  6. Step 6: Final answer
    x = 48,742.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.