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Finding the Fourth Proportional to 48,620.57, 72,943.15 and 13,560.22

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Solution

The fourth proportional to 48,620.57, 72,943.15 and 13,560.22 is: 20,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,620.57 : 72,943.15 = 13,560.22 : x
  2. Step 2: Convert to fraction form
    48,620.57/72,943.15 = 13,560.22/x
  3. Step 3: Cross multiply
    48,620.57x = 72,943.15 × 13,560.22
  4. Step 4: Simplify right side
    48,620.57x = 989,125,161.49
  5. Step 5: Solve for x
    x = 989,125,161.49/48,620.57
  6. Step 6: Final answer
    x = 20,343.76

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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.