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Finding the Fourth Proportional to 18,447.74, 27,675.71 and 5,299.10

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Solution

The fourth proportional to 18,447.74, 27,675.71 and 5,299.10 is: 7,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.74 : 27,675.71 = 5,299.10 : x
  2. Step 2: Convert to fraction form
    18,447.74/27,675.71 = 5,299.10/x
  3. Step 3: Cross multiply
    18,447.74x = 27,675.71 × 5,299.10
  4. Step 4: Simplify right side
    18,447.74x = 146,656,189.99
  5. Step 5: Solve for x
    x = 146,656,189.99/18,447.74
  6. Step 6: Final answer
    x = 7,949.82

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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.