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Finding the Fourth Proportional to 66,479.70, 91,743.96 and 36,266.74

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Solution

The fourth proportional to 66,479.70, 91,743.96 and 36,266.74 is: 50,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,479.70 : 91,743.96 = 36,266.74 : x
  2. Step 2: Convert to fraction form
    66,479.70/91,743.96 = 36,266.74/x
  3. Step 3: Cross multiply
    66,479.70x = 91,743.96 × 36,266.74
  4. Step 4: Simplify right side
    66,479.70x = 3,327,254,343.89
  5. Step 5: Solve for x
    x = 3,327,254,343.89/66,479.70
  6. Step 6: Final answer
    x = 50,049.18

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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.