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Finding the Third Proportional to 3,604 and 8,878

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Solution

The third proportional to 3,604 and 8,878 is: 21,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604 : 8,878 = 8,878 : x
  2. Step 2: Convert to fraction form
    3,604/8,878 = 8,878/x
  3. Step 3: Cross multiply
    3,604x = 8,878 × 8,878
  4. Step 4: Simplify right side
    3,604x = 78,818,884
  5. Step 5: Solve for x
    x = 78,818,884/3,604
  6. Step 6: Final answer
    x = 21,869.83

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Why These Related Problems?

These problems maintain the same ratio (2.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.