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Finding the Fourth Proportional to 66,881.37, 100,335.17 and 24,761.80

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Solution

The fourth proportional to 66,881.37, 100,335.17 and 24,761.80 is: 37,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.37 : 100,335.17 = 24,761.80 : x
  2. Step 2: Convert to fraction form
    66,881.37/100,335.17 = 24,761.80/x
  3. Step 3: Cross multiply
    66,881.37x = 100,335.17 × 24,761.80
  4. Step 4: Simplify right side
    66,881.37x = 2,484,479,412.51
  5. Step 5: Solve for x
    x = 2,484,479,412.51/66,881.37
  6. Step 6: Final answer
    x = 37,147.56

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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.