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Finding the Fourth Proportional to 63,447.40, 87,560.16 and 35,153

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Solution

The fourth proportional to 63,447.40, 87,560.16 and 35,153 is: 48,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,447.40 : 87,560.16 = 35,153 : x
  2. Step 2: Convert to fraction form
    63,447.40/87,560.16 = 35,153/x
  3. Step 3: Cross multiply
    63,447.40x = 87,560.16 × 35,153
  4. Step 4: Simplify right side
    63,447.40x = 3,078,002,304.48
  5. Step 5: Solve for x
    x = 3,078,002,304.48/63,447.40
  6. Step 6: Final answer
    x = 48,512.66

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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.