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Finding the Fourth Proportional to 20,644.76, 30,967.14 and 5,062.25

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Solution

The fourth proportional to 20,644.76, 30,967.14 and 5,062.25 is: 7,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644.76 : 30,967.14 = 5,062.25 : x
  2. Step 2: Convert to fraction form
    20,644.76/30,967.14 = 5,062.25/x
  3. Step 3: Cross multiply
    20,644.76x = 30,967.14 × 5,062.25
  4. Step 4: Simplify right side
    20,644.76x = 156,763,404.47
  5. Step 5: Solve for x
    x = 156,763,404.47/20,644.76
  6. Step 6: Final answer
    x = 7,593.38

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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.