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Finding the Fourth Proportional to 7,414.53, 11,121.79 and 7,094.58

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Solution

The fourth proportional to 7,414.53, 11,121.79 and 7,094.58 is: 10,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.53 : 11,121.79 = 7,094.58 : x
  2. Step 2: Convert to fraction form
    7,414.53/11,121.79 = 7,094.58/x
  3. Step 3: Cross multiply
    7,414.53x = 11,121.79 × 7,094.58
  4. Step 4: Simplify right side
    7,414.53x = 78,904,428.90
  5. Step 5: Solve for x
    x = 78,904,428.90/7,414.53
  6. Step 6: Final answer
    x = 10,641.87

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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.