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Finding the Third Proportional to 8,878.50 and 12,069

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Solution

The third proportional to 8,878.50 and 12,069 is: 16,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.50 : 12,069 = 12,069 : x
  2. Step 2: Convert to fraction form
    8,878.50/12,069 = 12,069/x
  3. Step 3: Cross multiply
    8,878.50x = 12,069 × 12,069
  4. Step 4: Simplify right side
    8,878.50x = 145,660,761
  5. Step 5: Solve for x
    x = 145,660,761/8,878.50
  6. Step 6: Final answer
    x = 16,406.01

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.