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Finding the Fourth Proportional to 48,979.60, 73,469.40 and 29,280.40

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Solution

The fourth proportional to 48,979.60, 73,469.40 and 29,280.40 is: 43,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,979.60 : 73,469.40 = 29,280.40 : x
  2. Step 2: Convert to fraction form
    48,979.60/73,469.40 = 29,280.40/x
  3. Step 3: Cross multiply
    48,979.60x = 73,469.40 × 29,280.40
  4. Step 4: Simplify right side
    48,979.60x = 2,151,213,419.76
  5. Step 5: Solve for x
    x = 2,151,213,419.76/48,979.60
  6. Step 6: Final answer
    x = 43,920.60

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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.