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Finding the Fourth Proportional to 65,954.73, 91,031.28 and 60,641.13

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Solution

The fourth proportional to 65,954.73, 91,031.28 and 60,641.13 is: 83,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,954.73 : 91,031.28 = 60,641.13 : x
  2. Step 2: Convert to fraction form
    65,954.73/91,031.28 = 60,641.13/x
  3. Step 3: Cross multiply
    65,954.73x = 91,031.28 × 60,641.13
  4. Step 4: Simplify right side
    65,954.73x = 5,520,239,684.55
  5. Step 5: Solve for x
    x = 5,520,239,684.55/65,954.73
  6. Step 6: Final answer
    x = 83,697.40

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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.