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Finding the Third Proportional to 27,972,192 and 42,215,312

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Solution

The third proportional to 27,972,192 and 42,215,312 is: 63,710,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972,192 : 42,215,312 = 42,215,312 : x
  2. Step 2: Convert to fraction form
    27,972,192/42,215,312 = 42,215,312/x
  3. Step 3: Cross multiply
    27,972,192x = 42,215,312 × 42,215,312
  4. Step 4: Simplify right side
    27,972,192x = 1,782,132,567,257,344
  5. Step 5: Solve for x
    x = 1,782,132,567,257,344/27,972,192
  6. Step 6: Final answer
    x = 63,710,865.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.