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Finding the Fourth Proportional to 63,564.66, 87,722.82 and 38,422.26

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Solution

The fourth proportional to 63,564.66, 87,722.82 and 38,422.26 is: 53,024.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,564.66 : 87,722.82 = 38,422.26 : x
  2. Step 2: Convert to fraction form
    63,564.66/87,722.82 = 38,422.26/x
  3. Step 3: Cross multiply
    63,564.66x = 87,722.82 × 38,422.26
  4. Step 4: Simplify right side
    63,564.66x = 3,370,508,997.97
  5. Step 5: Solve for x
    x = 3,370,508,997.97/63,564.66
  6. Step 6: Final answer
    x = 53,024.89

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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.