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Finding the Fourth Proportional to 58,609.77, 80,881.36 and 31,753

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Solution

The fourth proportional to 58,609.77, 80,881.36 and 31,753 is: 43,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,609.77 : 80,881.36 = 31,753 : x
  2. Step 2: Convert to fraction form
    58,609.77/80,881.36 = 31,753/x
  3. Step 3: Cross multiply
    58,609.77x = 80,881.36 × 31,753
  4. Step 4: Simplify right side
    58,609.77x = 2,568,225,824.08
  5. Step 5: Solve for x
    x = 2,568,225,824.08/58,609.77
  6. Step 6: Final answer
    x = 43,819.07

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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.