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Finding the Third Proportional to 15,945,478 and 34,016,972

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Solution

The third proportional to 15,945,478 and 34,016,972 is: 72,569,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945,478 : 34,016,972 = 34,016,972 : x
  2. Step 2: Convert to fraction form
    15,945,478/34,016,972 = 34,016,972/x
  3. Step 3: Cross multiply
    15,945,478x = 34,016,972 × 34,016,972
  4. Step 4: Simplify right side
    15,945,478x = 1,157,154,384,048,784
  5. Step 5: Solve for x
    x = 1,157,154,384,048,784/15,945,478
  6. Step 6: Final answer
    x = 72,569,438.44

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.