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Finding the Fourth Proportional to 20,019.76, 30,024.98 and 7,541.04

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Solution

The fourth proportional to 20,019.76, 30,024.98 and 7,541.04 is: 11,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.76 : 30,024.98 = 7,541.04 : x
  2. Step 2: Convert to fraction form
    20,019.76/30,024.98 = 7,541.04/x
  3. Step 3: Cross multiply
    20,019.76x = 30,024.98 × 7,541.04
  4. Step 4: Simplify right side
    20,019.76x = 226,419,575.18
  5. Step 5: Solve for x
    x = 226,419,575.18/20,019.76
  6. Step 6: Final answer
    x = 11,309.80

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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.