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Finding the Third Proportional to 29,915,721 and 64,300,437

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Solution

The third proportional to 29,915,721 and 64,300,437 is: 138,206,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,915,721 : 64,300,437 = 64,300,437 : x
  2. Step 2: Convert to fraction form
    29,915,721/64,300,437 = 64,300,437/x
  3. Step 3: Cross multiply
    29,915,721x = 64,300,437 × 64,300,437
  4. Step 4: Simplify right side
    29,915,721x = 4,134,546,198,390,969
  5. Step 5: Solve for x
    x = 4,134,546,198,390,969/29,915,721
  6. Step 6: Final answer
    x = 138,206,470.05

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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.