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Finding the Third Proportional to 8,857,575.28 and 12,666,348.42

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Solution

The third proportional to 8,857,575.28 and 12,666,348.42 is: 18,112,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857,575.28 : 12,666,348.42 = 12,666,348.42 : x
  2. Step 2: Convert to fraction form
    8,857,575.28/12,666,348.42 = 12,666,348.42/x
  3. Step 3: Cross multiply
    8,857,575.28x = 12,666,348.42 × 12,666,348.42
  4. Step 4: Simplify right side
    8,857,575.28x = 160,436,382,344,335.31
  5. Step 5: Solve for x
    x = 160,436,382,344,335.31/8,857,575.28
  6. Step 6: Final answer
    x = 18,112,900.79

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.