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Finding the Fourth Proportional to 65,872.88, 98,821.80 and 26,433.10

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Solution

The fourth proportional to 65,872.88, 98,821.80 and 26,433.10 is: 39,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,872.88 : 98,821.80 = 26,433.10 : x
  2. Step 2: Convert to fraction form
    65,872.88/98,821.80 = 26,433.10/x
  3. Step 3: Cross multiply
    65,872.88x = 98,821.80 × 26,433.10
  4. Step 4: Simplify right side
    65,872.88x = 2,612,166,521.58
  5. Step 5: Solve for x
    x = 2,612,166,521.58/65,872.88
  6. Step 6: Final answer
    x = 39,654.66

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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.