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Finding the Third Proportional to 3,891,212 and 6,216,242

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Solution

The third proportional to 3,891,212 and 6,216,242 is: 9,930,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,212 : 6,216,242 = 6,216,242 : x
  2. Step 2: Convert to fraction form
    3,891,212/6,216,242 = 6,216,242/x
  3. Step 3: Cross multiply
    3,891,212x = 6,216,242 × 6,216,242
  4. Step 4: Simplify right side
    3,891,212x = 38,641,664,602,564
  5. Step 5: Solve for x
    x = 38,641,664,602,564/3,891,212
  6. Step 6: Final answer
    x = 9,930,495.85

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.