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Finding the Third Proportional to 31,129,768 and 49,729,993

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Solution

The third proportional to 31,129,768 and 49,729,993 is: 79,443,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129,768 : 49,729,993 = 49,729,993 : x
  2. Step 2: Convert to fraction form
    31,129,768/49,729,993 = 49,729,993/x
  3. Step 3: Cross multiply
    31,129,768x = 49,729,993 × 49,729,993
  4. Step 4: Simplify right side
    31,129,768x = 2,473,072,203,780,049
  5. Step 5: Solve for x
    x = 2,473,072,203,780,049/31,129,768
  6. Step 6: Final answer
    x = 79,443,965.14

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.