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Finding the Fourth Proportional to 48,381.39, 66,766.32 and 27,160.65

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Solution

The fourth proportional to 48,381.39, 66,766.32 and 27,160.65 is: 37,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,381.39 : 66,766.32 = 27,160.65 : x
  2. Step 2: Convert to fraction form
    48,381.39/66,766.32 = 27,160.65/x
  3. Step 3: Cross multiply
    48,381.39x = 66,766.32 × 27,160.65
  4. Step 4: Simplify right side
    48,381.39x = 1,813,416,649.31
  5. Step 5: Solve for x
    x = 1,813,416,649.31/48,381.39
  6. Step 6: Final answer
    x = 37,481.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.