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Finding the Third Proportional to 39,753,656 and 84,090,854

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Solution

The third proportional to 39,753,656 and 84,090,854 is: 177,877,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753,656 : 84,090,854 = 84,090,854 : x
  2. Step 2: Convert to fraction form
    39,753,656/84,090,854 = 84,090,854/x
  3. Step 3: Cross multiply
    39,753,656x = 84,090,854 × 84,090,854
  4. Step 4: Simplify right side
    39,753,656x = 7,071,271,726,449,316
  5. Step 5: Solve for x
    x = 7,071,271,726,449,316/39,753,656
  6. Step 6: Final answer
    x = 177,877,268.10

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.