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Finding the Fourth Proportional to 19,902.59, 27,465.57 and 10,949.90

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Solution

The fourth proportional to 19,902.59, 27,465.57 and 10,949.90 is: 15,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.59 : 27,465.57 = 10,949.90 : x
  2. Step 2: Convert to fraction form
    19,902.59/27,465.57 = 10,949.90/x
  3. Step 3: Cross multiply
    19,902.59x = 27,465.57 × 10,949.90
  4. Step 4: Simplify right side
    19,902.59x = 300,745,244.94
  5. Step 5: Solve for x
    x = 300,745,244.94/19,902.59
  6. Step 6: Final answer
    x = 15,110.86

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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.