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Finding the Third Proportional to 7,639,031 and 11,047,372

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Solution

The third proportional to 7,639,031 and 11,047,372 is: 15,976,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639,031 : 11,047,372 = 11,047,372 : x
  2. Step 2: Convert to fraction form
    7,639,031/11,047,372 = 11,047,372/x
  3. Step 3: Cross multiply
    7,639,031x = 11,047,372 × 11,047,372
  4. Step 4: Simplify right side
    7,639,031x = 122,044,428,106,384
  5. Step 5: Solve for x
    x = 122,044,428,106,384/7,639,031
  6. Step 6: Final answer
    x = 15,976,427.91

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.