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Finding the Fourth Proportional to 20,616.50, 30,924.95 and 5,034.13

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Solution

The fourth proportional to 20,616.50, 30,924.95 and 5,034.13 is: 7,551.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.50 : 30,924.95 = 5,034.13 : x
  2. Step 2: Convert to fraction form
    20,616.50/30,924.95 = 5,034.13/x
  3. Step 3: Cross multiply
    20,616.50x = 30,924.95 × 5,034.13
  4. Step 4: Simplify right side
    20,616.50x = 155,680,218.54
  5. Step 5: Solve for x
    x = 155,680,218.54/20,616.50
  6. Step 6: Final answer
    x = 7,551.24

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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.