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Finding the Fourth Proportional to 8,939.52, 13,404.65 and 3,673.58

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Solution

The fourth proportional to 8,939.52, 13,404.65 and 3,673.58 is: 5,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.52 : 13,404.65 = 3,673.58 : x
  2. Step 2: Convert to fraction form
    8,939.52/13,404.65 = 3,673.58/x
  3. Step 3: Cross multiply
    8,939.52x = 13,404.65 × 3,673.58
  4. Step 4: Simplify right side
    8,939.52x = 49,242,968.76
  5. Step 5: Solve for x
    x = 49,242,968.76/8,939.52
  6. Step 6: Final answer
    x = 5,508.46

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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.