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Finding the Fourth Proportional to 48,722.77, 73,084.15 and 11,786.77

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Solution

The fourth proportional to 48,722.77, 73,084.15 and 11,786.77 is: 17,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,722.77 : 73,084.15 = 11,786.77 : x
  2. Step 2: Convert to fraction form
    48,722.77/73,084.15 = 11,786.77/x
  3. Step 3: Cross multiply
    48,722.77x = 73,084.15 × 11,786.77
  4. Step 4: Simplify right side
    48,722.77x = 861,425,728.54
  5. Step 5: Solve for x
    x = 861,425,728.54/48,722.77
  6. Step 6: Final answer
    x = 17,680.15

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Similar ratio
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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.