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Finding the Fourth Proportional to 53,660.17, 80,472.03 and 18,591.64

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Solution

The fourth proportional to 53,660.17, 80,472.03 and 18,591.64 is: 27,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,660.17 : 80,472.03 = 18,591.64 : x
  2. Step 2: Convert to fraction form
    53,660.17/80,472.03 = 18,591.64/x
  3. Step 3: Cross multiply
    53,660.17x = 80,472.03 × 18,591.64
  4. Step 4: Simplify right side
    53,660.17x = 1,496,107,011.83
  5. Step 5: Solve for x
    x = 1,496,107,011.83/53,660.17
  6. Step 6: Final answer
    x = 27,881.15

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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.