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Finding the Third Proportional to 9,148,869 and 19,891,332

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Solution

The third proportional to 9,148,869 and 19,891,332 is: 43,247,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148,869 : 19,891,332 = 19,891,332 : x
  2. Step 2: Convert to fraction form
    9,148,869/19,891,332 = 19,891,332/x
  3. Step 3: Cross multiply
    9,148,869x = 19,891,332 × 19,891,332
  4. Step 4: Simplify right side
    9,148,869x = 395,665,088,734,224
  5. Step 5: Solve for x
    x = 395,665,088,734,224/9,148,869
  6. Step 6: Final answer
    x = 43,247,431.87

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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.