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Finding the Fourth Proportional to 65,589.76, 98,397.28 and 21,227.52

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Solution

The fourth proportional to 65,589.76, 98,397.28 and 21,227.52 is: 31,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,589.76 : 98,397.28 = 21,227.52 : x
  2. Step 2: Convert to fraction form
    65,589.76/98,397.28 = 21,227.52/x
  3. Step 3: Cross multiply
    65,589.76x = 98,397.28 × 21,227.52
  4. Step 4: Simplify right side
    65,589.76x = 2,088,730,229.15
  5. Step 5: Solve for x
    x = 2,088,730,229.15/65,589.76
  6. Step 6: Final answer
    x = 31,845.37

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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.