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Finding the Fourth Proportional to 65,882.62, 98,829.38 and 21,508.39

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Solution

The fourth proportional to 65,882.62, 98,829.38 and 21,508.39 is: 32,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,882.62 : 98,829.38 = 21,508.39 : x
  2. Step 2: Convert to fraction form
    65,882.62/98,829.38 = 21,508.39/x
  3. Step 3: Cross multiply
    65,882.62x = 98,829.38 × 21,508.39
  4. Step 4: Simplify right side
    65,882.62x = 2,125,660,848.50
  5. Step 5: Solve for x
    x = 2,125,660,848.50/65,882.62
  6. Step 6: Final answer
    x = 32,264.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.