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Finding the Fourth Proportional to 18,472.81, 27,703.41 and 5,990.17

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Solution

The fourth proportional to 18,472.81, 27,703.41 and 5,990.17 is: 8,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.81 : 27,703.41 = 5,990.17 : x
  2. Step 2: Convert to fraction form
    18,472.81/27,703.41 = 5,990.17/x
  3. Step 3: Cross multiply
    18,472.81x = 27,703.41 × 5,990.17
  4. Step 4: Simplify right side
    18,472.81x = 165,948,135.48
  5. Step 5: Solve for x
    x = 165,948,135.48/18,472.81
  6. Step 6: Final answer
    x = 8,983.37

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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.