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Finding the Fourth Proportional to 19,490.20, 29,229.62 and 7,008.10

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Solution

The fourth proportional to 19,490.20, 29,229.62 and 7,008.10 is: 10,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.20 : 29,229.62 = 7,008.10 : x
  2. Step 2: Convert to fraction form
    19,490.20/29,229.62 = 7,008.10/x
  3. Step 3: Cross multiply
    19,490.20x = 29,229.62 × 7,008.10
  4. Step 4: Simplify right side
    19,490.20x = 204,844,099.92
  5. Step 5: Solve for x
    x = 204,844,099.92/19,490.20
  6. Step 6: Final answer
    x = 10,510.11

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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.