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Finding the Fourth Proportional to 48,872.20, 73,293.90 and 19,280.20

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Solution

The fourth proportional to 48,872.20, 73,293.90 and 19,280.20 is: 28,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,872.20 : 73,293.90 = 19,280.20 : x
  2. Step 2: Convert to fraction form
    48,872.20/73,293.90 = 19,280.20/x
  3. Step 3: Cross multiply
    48,872.20x = 73,293.90 × 19,280.20
  4. Step 4: Simplify right side
    48,872.20x = 1,413,121,050.78
  5. Step 5: Solve for x
    x = 1,413,121,050.78/48,872.20
  6. Step 6: Final answer
    x = 28,914.62

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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.