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Finding the Fourth Proportional to 65,521.76, 98,328.08 and 29,987.42

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Solution

The fourth proportional to 65,521.76, 98,328.08 and 29,987.42 is: 45,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,521.76 : 98,328.08 = 29,987.42 : x
  2. Step 2: Convert to fraction form
    65,521.76/98,328.08 = 29,987.42/x
  3. Step 3: Cross multiply
    65,521.76x = 98,328.08 × 29,987.42
  4. Step 4: Simplify right side
    65,521.76x = 2,948,604,791.18
  5. Step 5: Solve for x
    x = 2,948,604,791.18/65,521.76
  6. Step 6: Final answer
    x = 45,001.92

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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.