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Finding the Fourth Proportional to 66,719.76, 100,063.92 and 24,576.96

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Solution

The fourth proportional to 66,719.76, 100,063.92 and 24,576.96 is: 36,859.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.76 : 100,063.92 = 24,576.96 : x
  2. Step 2: Convert to fraction form
    66,719.76/100,063.92 = 24,576.96/x
  3. Step 3: Cross multiply
    66,719.76x = 100,063.92 × 24,576.96
  4. Step 4: Simplify right side
    66,719.76x = 2,459,266,959.28
  5. Step 5: Solve for x
    x = 2,459,266,959.28/66,719.76
  6. Step 6: Final answer
    x = 36,859.65

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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.