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Finding the Fourth Proportional to 20,624, 30,941.28 and 6,773.12

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Solution

The fourth proportional to 20,624, 30,941.28 and 6,773.12 is: 10,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624 : 30,941.28 = 6,773.12 : x
  2. Step 2: Convert to fraction form
    20,624/30,941.28 = 6,773.12/x
  3. Step 3: Cross multiply
    20,624x = 30,941.28 × 6,773.12
  4. Step 4: Simplify right side
    20,624x = 209,569,002.39
  5. Step 5: Solve for x
    x = 209,569,002.39/20,624
  6. Step 6: Final answer
    x = 10,161.41

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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.