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Finding the Fourth Proportional to 41,560.48, 62,300.40 and 20,720.80

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Solution

The fourth proportional to 41,560.48, 62,300.40 and 20,720.80 is: 31,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,560.48 : 62,300.40 = 20,720.80 : x
  2. Step 2: Convert to fraction form
    41,560.48/62,300.40 = 20,720.80/x
  3. Step 3: Cross multiply
    41,560.48x = 62,300.40 × 20,720.80
  4. Step 4: Simplify right side
    41,560.48x = 1,290,914,128.32
  5. Step 5: Solve for x
    x = 1,290,914,128.32/41,560.48
  6. Step 6: Final answer
    x = 31,061.10

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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.