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Finding the Third Proportional to 19,972,569 and 43,030,455

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Solution

The third proportional to 19,972,569 and 43,030,455 is: 92,708,156.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972,569 : 43,030,455 = 43,030,455 : x
  2. Step 2: Convert to fraction form
    19,972,569/43,030,455 = 43,030,455/x
  3. Step 3: Cross multiply
    19,972,569x = 43,030,455 × 43,030,455
  4. Step 4: Simplify right side
    19,972,569x = 1,851,620,057,507,025
  5. Step 5: Solve for x
    x = 1,851,620,057,507,025/19,972,569
  6. Step 6: Final answer
    x = 92,708,156.75

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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.