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Finding the Fourth Proportional to 18,486.29, 27,727.92 and 9,601.61

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Solution

The fourth proportional to 18,486.29, 27,727.92 and 9,601.61 is: 14,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.29 : 27,727.92 = 9,601.61 : x
  2. Step 2: Convert to fraction form
    18,486.29/27,727.92 = 9,601.61/x
  3. Step 3: Cross multiply
    18,486.29x = 27,727.92 × 9,601.61
  4. Step 4: Simplify right side
    18,486.29x = 266,232,535.31
  5. Step 5: Solve for x
    x = 266,232,535.31/18,486.29
  6. Step 6: Final answer
    x = 14,401.62

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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.