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Finding the Fourth Proportional to 18,151.10, 27,227.68 and 6,464.32

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Solution

The fourth proportional to 18,151.10, 27,227.68 and 6,464.32 is: 9,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.10 : 27,227.68 = 6,464.32 : x
  2. Step 2: Convert to fraction form
    18,151.10/27,227.68 = 6,464.32/x
  3. Step 3: Cross multiply
    18,151.10x = 27,227.68 × 6,464.32
  4. Step 4: Simplify right side
    18,151.10x = 176,008,436.38
  5. Step 5: Solve for x
    x = 176,008,436.38/18,151.10
  6. Step 6: Final answer
    x = 9,696.85

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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.