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Finding the Third Proportional to 29,892,120 and 64,368,792

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Solution

The third proportional to 29,892,120 and 64,368,792 is: 138,609,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,892,120 : 64,368,792 = 64,368,792 : x
  2. Step 2: Convert to fraction form
    29,892,120/64,368,792 = 64,368,792/x
  3. Step 3: Cross multiply
    29,892,120x = 64,368,792 × 64,368,792
  4. Step 4: Simplify right side
    29,892,120x = 4,143,341,383,539,264
  5. Step 5: Solve for x
    x = 4,143,341,383,539,264/29,892,120
  6. Step 6: Final answer
    x = 138,609,820.37

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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.