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Finding the Third Proportional to 4,947,426 and 10,642,779

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Solution

The third proportional to 4,947,426 and 10,642,779 is: 22,894,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947,426 : 10,642,779 = 10,642,779 : x
  2. Step 2: Convert to fraction form
    4,947,426/10,642,779 = 10,642,779/x
  3. Step 3: Cross multiply
    4,947,426x = 10,642,779 × 10,642,779
  4. Step 4: Simplify right side
    4,947,426x = 113,268,744,842,841
  5. Step 5: Solve for x
    x = 113,268,744,842,841/4,947,426
  6. Step 6: Final answer
    x = 22,894,479.85

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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.