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Finding the Fourth Proportional to 49,972.20, 69,873.60 and 49,972.20

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Solution

The fourth proportional to 49,972.20, 69,873.60 and 49,972.20 is: 69,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,972.20 : 69,873.60 = 49,972.20 : x
  2. Step 2: Convert to fraction form
    49,972.20/69,873.60 = 49,972.20/x
  3. Step 3: Cross multiply
    49,972.20x = 69,873.60 × 49,972.20
  4. Step 4: Simplify right side
    49,972.20x = 3,491,737,513.92
  5. Step 5: Solve for x
    x = 3,491,737,513.92/49,972.20
  6. Step 6: Final answer
    x = 69,873.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.