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Finding the Fourth Proportional to 8,872.34, 13,305.80 and 3,677

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Solution

The fourth proportional to 8,872.34, 13,305.80 and 3,677 is: 5,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.34 : 13,305.80 = 3,677 : x
  2. Step 2: Convert to fraction form
    8,872.34/13,305.80 = 3,677/x
  3. Step 3: Cross multiply
    8,872.34x = 13,305.80 × 3,677
  4. Step 4: Simplify right side
    8,872.34x = 48,925,426.60
  5. Step 5: Solve for x
    x = 48,925,426.60/8,872.34
  6. Step 6: Final answer
    x = 5,514.38

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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.