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Finding the Third Proportional to 15,897,890 and 34,436,865

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Solution

The third proportional to 15,897,890 and 34,436,865 is: 74,594,658.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897,890 : 34,436,865 = 34,436,865 : x
  2. Step 2: Convert to fraction form
    15,897,890/34,436,865 = 34,436,865/x
  3. Step 3: Cross multiply
    15,897,890x = 34,436,865 × 34,436,865
  4. Step 4: Simplify right side
    15,897,890x = 1,185,897,671,028,225
  5. Step 5: Solve for x
    x = 1,185,897,671,028,225/15,897,890
  6. Step 6: Final answer
    x = 74,594,658.22

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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.