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Finding the Fourth Proportional to 66,699.68, 100,049.68 and 27,256.78

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Solution

The fourth proportional to 66,699.68, 100,049.68 and 27,256.78 is: 40,885.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,699.68 : 100,049.68 = 27,256.78 : x
  2. Step 2: Convert to fraction form
    66,699.68/100,049.68 = 27,256.78/x
  3. Step 3: Cross multiply
    66,699.68x = 100,049.68 × 27,256.78
  4. Step 4: Simplify right side
    66,699.68x = 2,727,032,116.83
  5. Step 5: Solve for x
    x = 2,727,032,116.83/66,699.68
  6. Step 6: Final answer
    x = 40,885.24

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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.