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Finding the Fourth Proportional to 48,540.56, 72,812.44 and 13,480.56

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Solution

The fourth proportional to 48,540.56, 72,812.44 and 13,480.56 is: 20,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.56 : 72,812.44 = 13,480.56 : x
  2. Step 2: Convert to fraction form
    48,540.56/72,812.44 = 13,480.56/x
  3. Step 3: Cross multiply
    48,540.56x = 72,812.44 × 13,480.56
  4. Step 4: Simplify right side
    48,540.56x = 981,552,466.17
  5. Step 5: Solve for x
    x = 981,552,466.17/48,540.56
  6. Step 6: Final answer
    x = 20,221.28

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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.