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Finding the Fourth Proportional to 63,031.08, 86,978.94 and 34,736.96

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Solution

The fourth proportional to 63,031.08, 86,978.94 and 34,736.96 is: 47,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,031.08 : 86,978.94 = 34,736.96 : x
  2. Step 2: Convert to fraction form
    63,031.08/86,978.94 = 34,736.96/x
  3. Step 3: Cross multiply
    63,031.08x = 86,978.94 × 34,736.96
  4. Step 4: Simplify right side
    63,031.08x = 3,021,383,959.62
  5. Step 5: Solve for x
    x = 3,021,383,959.62/63,031.08
  6. Step 6: Final answer
    x = 47,934.83

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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.