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Finding the Fourth Proportional to 48,393.68, 66,758.04 and 30,454.88

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Solution

The fourth proportional to 48,393.68, 66,758.04 and 30,454.88 is: 42,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,393.68 : 66,758.04 = 30,454.88 : x
  2. Step 2: Convert to fraction form
    48,393.68/66,758.04 = 30,454.88/x
  3. Step 3: Cross multiply
    48,393.68x = 66,758.04 × 30,454.88
  4. Step 4: Simplify right side
    48,393.68x = 2,033,108,097.24
  5. Step 5: Solve for x
    x = 2,033,108,097.24/48,393.68
  6. Step 6: Final answer
    x = 42,011.85

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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.