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Finding the Fourth Proportional to 63,031.70, 86,983.77 and 34,351.37

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Solution

The fourth proportional to 63,031.70, 86,983.77 and 34,351.37 is: 47,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,031.70 : 86,983.77 = 34,351.37 : x
  2. Step 2: Convert to fraction form
    63,031.70/86,983.77 = 34,351.37/x
  3. Step 3: Cross multiply
    63,031.70x = 86,983.77 × 34,351.37
  4. Step 4: Simplify right side
    63,031.70x = 2,988,011,667.26
  5. Step 5: Solve for x
    x = 2,988,011,667.26/63,031.70
  6. Step 6: Final answer
    x = 47,404.90

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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.