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Finding the Third Proportional to 21,438,255 and 45,988,626

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Solution

The third proportional to 21,438,255 and 45,988,626 is: 98,653,258.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,255 : 45,988,626 = 45,988,626 : x
  2. Step 2: Convert to fraction form
    21,438,255/45,988,626 = 45,988,626/x
  3. Step 3: Cross multiply
    21,438,255x = 45,988,626 × 45,988,626
  4. Step 4: Simplify right side
    21,438,255x = 2,114,953,721,367,876
  5. Step 5: Solve for x
    x = 2,114,953,721,367,876/21,438,255
  6. Step 6: Final answer
    x = 98,653,258.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.