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Finding the Third Proportional to 29,920,816 and 64,625,167

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Solution

The third proportional to 29,920,816 and 64,625,167 is: 139,582,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,920,816 : 64,625,167 = 64,625,167 : x
  2. Step 2: Convert to fraction form
    29,920,816/64,625,167 = 64,625,167/x
  3. Step 3: Cross multiply
    29,920,816x = 64,625,167 × 64,625,167
  4. Step 4: Simplify right side
    29,920,816x = 4,176,412,209,777,889
  5. Step 5: Solve for x
    x = 4,176,412,209,777,889/29,920,816
  6. Step 6: Final answer
    x = 139,582,162.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.