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Finding the Third Proportional to 8,770.88 and 13,118.63

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Solution

The third proportional to 8,770.88 and 13,118.63 is: 19,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.88 : 13,118.63 = 13,118.63 : x
  2. Step 2: Convert to fraction form
    8,770.88/13,118.63 = 13,118.63/x
  3. Step 3: Cross multiply
    8,770.88x = 13,118.63 × 13,118.63
  4. Step 4: Simplify right side
    8,770.88x = 172,098,321.89
  5. Step 5: Solve for x
    x = 172,098,321.89/8,770.88
  6. Step 6: Final answer
    x = 19,621.57

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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.