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Finding the Fourth Proportional to 66,714.40, 100,071.04 and 27,243.83

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Solution

The fourth proportional to 66,714.40, 100,071.04 and 27,243.83 is: 40,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,714.40 : 100,071.04 = 27,243.83 : x
  2. Step 2: Convert to fraction form
    66,714.40/100,071.04 = 27,243.83/x
  3. Step 3: Cross multiply
    66,714.40x = 100,071.04 × 27,243.83
  4. Step 4: Simplify right side
    66,714.40x = 2,726,318,401.68
  5. Step 5: Solve for x
    x = 2,726,318,401.68/66,714.40
  6. Step 6: Final answer
    x = 40,865.52

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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.