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Finding the Fourth Proportional to 18,446.67, 25,464.87 and 11,377.17

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Solution

The fourth proportional to 18,446.67, 25,464.87 and 11,377.17 is: 15,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.67 : 25,464.87 = 11,377.17 : x
  2. Step 2: Convert to fraction form
    18,446.67/25,464.87 = 11,377.17/x
  3. Step 3: Cross multiply
    18,446.67x = 25,464.87 × 11,377.17
  4. Step 4: Simplify right side
    18,446.67x = 289,718,155.02
  5. Step 5: Solve for x
    x = 289,718,155.02/18,446.67
  6. Step 6: Final answer
    x = 15,705.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.