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Finding the Fourth Proportional to 40,958.52, 61,448.52 and 12,877.44

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Solution

The fourth proportional to 40,958.52, 61,448.52 and 12,877.44 is: 19,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,958.52 : 61,448.52 = 12,877.44 : x
  2. Step 2: Convert to fraction form
    40,958.52/61,448.52 = 12,877.44/x
  3. Step 3: Cross multiply
    40,958.52x = 61,448.52 × 12,877.44
  4. Step 4: Simplify right side
    40,958.52x = 791,299,677.68
  5. Step 5: Solve for x
    x = 791,299,677.68/40,958.52
  6. Step 6: Final answer
    x = 19,319.54

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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.