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Finding the Fourth Proportional to 48,979.60, 73,480.20 and 15,701.20

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Solution

The fourth proportional to 48,979.60, 73,480.20 and 15,701.20 is: 23,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,979.60 : 73,480.20 = 15,701.20 : x
  2. Step 2: Convert to fraction form
    48,979.60/73,480.20 = 15,701.20/x
  3. Step 3: Cross multiply
    48,979.60x = 73,480.20 × 15,701.20
  4. Step 4: Simplify right side
    48,979.60x = 1,153,727,316.24
  5. Step 5: Solve for x
    x = 1,153,727,316.24/48,979.60
  6. Step 6: Final answer
    x = 23,555.26

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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.