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Finding the Third Proportional to 9,156,711 and 19,905,558

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Solution

The third proportional to 9,156,711 and 19,905,558 is: 43,272,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156,711 : 19,905,558 = 19,905,558 : x
  2. Step 2: Convert to fraction form
    9,156,711/19,905,558 = 19,905,558/x
  3. Step 3: Cross multiply
    9,156,711x = 19,905,558 × 19,905,558
  4. Step 4: Simplify right side
    9,156,711x = 396,231,239,291,364
  5. Step 5: Solve for x
    x = 396,231,239,291,364/9,156,711
  6. Step 6: Final answer
    x = 43,272,222.89

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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.