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Finding the Fourth Proportional to 62,661.28, 86,471.94 and 34,367.44

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Solution

The fourth proportional to 62,661.28, 86,471.94 and 34,367.44 is: 47,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,661.28 : 86,471.94 = 34,367.44 : x
  2. Step 2: Convert to fraction form
    62,661.28/86,471.94 = 34,367.44/x
  3. Step 3: Cross multiply
    62,661.28x = 86,471.94 × 34,367.44
  4. Step 4: Simplify right side
    62,661.28x = 2,971,819,209.63
  5. Step 5: Solve for x
    x = 2,971,819,209.63/62,661.28
  6. Step 6: Final answer
    x = 47,426.72

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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.