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Finding the Third Proportional to 39,021,926 and 84,037,312

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Solution

The third proportional to 39,021,926 and 84,037,312 is: 180,982,092.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021,926 : 84,037,312 = 84,037,312 : x
  2. Step 2: Convert to fraction form
    39,021,926/84,037,312 = 84,037,312/x
  3. Step 3: Cross multiply
    39,021,926x = 84,037,312 × 84,037,312
  4. Step 4: Simplify right side
    39,021,926x = 7,062,269,808,185,344
  5. Step 5: Solve for x
    x = 7,062,269,808,185,344/39,021,926
  6. Step 6: Final answer
    x = 180,982,092.18

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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.