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Finding the Fourth Proportional to 8,671.52, 12,998.63 and 3,673.32

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Solution

The fourth proportional to 8,671.52, 12,998.63 and 3,673.32 is: 5,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.52 : 12,998.63 = 3,673.32 : x
  2. Step 2: Convert to fraction form
    8,671.52/12,998.63 = 3,673.32/x
  3. Step 3: Cross multiply
    8,671.52x = 12,998.63 × 3,673.32
  4. Step 4: Simplify right side
    8,671.52x = 47,748,067.33
  5. Step 5: Solve for x
    x = 47,748,067.33/8,671.52
  6. Step 6: Final answer
    x = 5,506.31

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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.