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Finding the Fourth Proportional to 63,788.70, 88,031.10 and 35,493.78

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Solution

The fourth proportional to 63,788.70, 88,031.10 and 35,493.78 is: 48,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,788.70 : 88,031.10 = 35,493.78 : x
  2. Step 2: Convert to fraction form
    63,788.70/88,031.10 = 35,493.78/x
  3. Step 3: Cross multiply
    63,788.70x = 88,031.10 × 35,493.78
  4. Step 4: Simplify right side
    63,788.70x = 3,124,556,496.56
  5. Step 5: Solve for x
    x = 3,124,556,496.56/63,788.70
  6. Step 6: Final answer
    x = 48,982.92

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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.