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Finding the Fourth Proportional to 45,042.60, 67,471.65 and 25,279.65

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Solution

The fourth proportional to 45,042.60, 67,471.65 and 25,279.65 is: 37,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,042.60 : 67,471.65 = 25,279.65 : x
  2. Step 2: Convert to fraction form
    45,042.60/67,471.65 = 25,279.65/x
  3. Step 3: Cross multiply
    45,042.60x = 67,471.65 × 25,279.65
  4. Step 4: Simplify right side
    45,042.60x = 1,705,659,696.92
  5. Step 5: Solve for x
    x = 1,705,659,696.92/45,042.60
  6. Step 6: Final answer
    x = 37,867.70

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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.