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Finding the Third Proportional to 19,067,643 and 40,629,840

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Solution

The third proportional to 19,067,643 and 40,629,840 is: 86,575,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067,643 : 40,629,840 = 40,629,840 : x
  2. Step 2: Convert to fraction form
    19,067,643/40,629,840 = 40,629,840/x
  3. Step 3: Cross multiply
    19,067,643x = 40,629,840 × 40,629,840
  4. Step 4: Simplify right side
    19,067,643x = 1,650,783,898,425,600
  5. Step 5: Solve for x
    x = 1,650,783,898,425,600/19,067,643
  6. Step 6: Final answer
    x = 86,575,141.90

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.