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Finding the Fourth Proportional to 20,395.29, 30,592.94 and 7,248.18

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Solution

The fourth proportional to 20,395.29, 30,592.94 and 7,248.18 is: 10,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.29 : 30,592.94 = 7,248.18 : x
  2. Step 2: Convert to fraction form
    20,395.29/30,592.94 = 7,248.18/x
  3. Step 3: Cross multiply
    20,395.29x = 30,592.94 × 7,248.18
  4. Step 4: Simplify right side
    20,395.29x = 221,743,099.61
  5. Step 5: Solve for x
    x = 221,743,099.61/20,395.29
  6. Step 6: Final answer
    x = 10,872.27

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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.