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Finding the Fourth Proportional to 63,398.92, 95,062.84 and 43,431

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Solution

The fourth proportional to 63,398.92, 95,062.84 and 43,431 is: 65,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,398.92 : 95,062.84 = 43,431 : x
  2. Step 2: Convert to fraction form
    63,398.92/95,062.84 = 43,431/x
  3. Step 3: Cross multiply
    63,398.92x = 95,062.84 × 43,431
  4. Step 4: Simplify right side
    63,398.92x = 4,128,674,204.04
  5. Step 5: Solve for x
    x = 4,128,674,204.04/63,398.92
  6. Step 6: Final answer
    x = 65,122.15

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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.