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Finding the Fourth Proportional to 47,246.20, 70,974.90 and 39,470.20

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Solution

The fourth proportional to 47,246.20, 70,974.90 and 39,470.20 is: 59,293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,246.20 : 70,974.90 = 39,470.20 : x
  2. Step 2: Convert to fraction form
    47,246.20/70,974.90 = 39,470.20/x
  3. Step 3: Cross multiply
    47,246.20x = 70,974.90 × 39,470.20
  4. Step 4: Simplify right side
    47,246.20x = 2,801,393,497.98
  5. Step 5: Solve for x
    x = 2,801,393,497.98/47,246.20
  6. Step 6: Final answer
    x = 59,293.52

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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.