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Finding the Fourth Proportional to 58,645.48, 80,928.76 and 34,757.97

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Solution

The fourth proportional to 58,645.48, 80,928.76 and 34,757.97 is: 47,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,645.48 : 80,928.76 = 34,757.97 : x
  2. Step 2: Convert to fraction form
    58,645.48/80,928.76 = 34,757.97/x
  3. Step 3: Cross multiply
    58,645.48x = 80,928.76 × 34,757.97
  4. Step 4: Simplify right side
    58,645.48x = 2,812,919,412.22
  5. Step 5: Solve for x
    x = 2,812,919,412.22/58,645.48
  6. Step 6: Final answer
    x = 47,964.81

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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.