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Finding the Fourth Proportional to 71,660.51, 107,491.82 and 27,289.74

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Solution

The fourth proportional to 71,660.51, 107,491.82 and 27,289.74 is: 40,935.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,660.51 : 107,491.82 = 27,289.74 : x
  2. Step 2: Convert to fraction form
    71,660.51/107,491.82 = 27,289.74/x
  3. Step 3: Cross multiply
    71,660.51x = 107,491.82 × 27,289.74
  4. Step 4: Simplify right side
    71,660.51x = 2,933,423,683.48
  5. Step 5: Solve for x
    x = 2,933,423,683.48/71,660.51
  6. Step 6: Final answer
    x = 40,935.01

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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.