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Finding the Fourth Proportional to 48,507.66, 66,931.92 and 27,279.18

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Solution

The fourth proportional to 48,507.66, 66,931.92 and 27,279.18 is: 37,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,507.66 : 66,931.92 = 27,279.18 : x
  2. Step 2: Convert to fraction form
    48,507.66/66,931.92 = 27,279.18/x
  3. Step 3: Cross multiply
    48,507.66x = 66,931.92 × 27,279.18
  4. Step 4: Simplify right side
    48,507.66x = 1,825,847,893.43
  5. Step 5: Solve for x
    x = 1,825,847,893.43/48,507.66
  6. Step 6: Final answer
    x = 37,640.40

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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.