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Finding the Third Proportional to 9,001,857.38 and 12,863,446.50

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Solution

The third proportional to 9,001,857.38 and 12,863,446.50 is: 18,381,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001,857.38 : 12,863,446.50 = 12,863,446.50 : x
  2. Step 2: Convert to fraction form
    9,001,857.38/12,863,446.50 = 12,863,446.50/x
  3. Step 3: Cross multiply
    9,001,857.38x = 12,863,446.50 × 12,863,446.50
  4. Step 4: Simplify right side
    9,001,857.38x = 165,468,255,858,362.25
  5. Step 5: Solve for x
    x = 165,468,255,858,362.25/9,001,857.38
  6. Step 6: Final answer
    x = 18,381,568.27

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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.