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Finding the Third Proportional to 9,156,456 and 19,905,597

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Solution

The third proportional to 9,156,456 and 19,905,597 is: 43,273,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156,456 : 19,905,597 = 19,905,597 : x
  2. Step 2: Convert to fraction form
    9,156,456/19,905,597 = 19,905,597/x
  3. Step 3: Cross multiply
    9,156,456x = 19,905,597 × 19,905,597
  4. Step 4: Simplify right side
    9,156,456x = 396,232,791,926,409
  5. Step 5: Solve for x
    x = 396,232,791,926,409/9,156,456
  6. Step 6: Final answer
    x = 43,273,597.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.