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Finding the Third Proportional to 20,572,572 and 45,206,403

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Solution

The third proportional to 20,572,572 and 45,206,403 is: 99,337,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,572 : 45,206,403 = 45,206,403 : x
  2. Step 2: Convert to fraction form
    20,572,572/45,206,403 = 45,206,403/x
  3. Step 3: Cross multiply
    20,572,572x = 45,206,403 × 45,206,403
  4. Step 4: Simplify right side
    20,572,572x = 2,043,618,872,198,409
  5. Step 5: Solve for x
    x = 2,043,618,872,198,409/20,572,572
  6. Step 6: Final answer
    x = 99,337,062.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.