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Finding the Fourth Proportional to 66,700.68, 100,051.18 and 27,257.78

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Solution

The fourth proportional to 66,700.68, 100,051.18 and 27,257.78 is: 40,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,700.68 : 100,051.18 = 27,257.78 : x
  2. Step 2: Convert to fraction form
    66,700.68/100,051.18 = 27,257.78/x
  3. Step 3: Cross multiply
    66,700.68x = 100,051.18 × 27,257.78
  4. Step 4: Simplify right side
    66,700.68x = 2,727,173,053.18
  5. Step 5: Solve for x
    x = 2,727,173,053.18/66,700.68
  6. Step 6: Final answer
    x = 40,886.74

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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.