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Finding the Fourth Proportional to 18,591.31, 27,881.06 and 6,108.45

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Solution

The fourth proportional to 18,591.31, 27,881.06 and 6,108.45 is: 9,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.31 : 27,881.06 = 6,108.45 : x
  2. Step 2: Convert to fraction form
    18,591.31/27,881.06 = 6,108.45/x
  3. Step 3: Cross multiply
    18,591.31x = 27,881.06 × 6,108.45
  4. Step 4: Simplify right side
    18,591.31x = 170,309,925.86
  5. Step 5: Solve for x
    x = 170,309,925.86/18,591.31
  6. Step 6: Final answer
    x = 9,160.73

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1.5x scale

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.