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Finding the Third Proportional to 3,985,488 and 5,592,428.75

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Solution

The third proportional to 3,985,488 and 5,592,428.75 is: 7,847,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,488 : 5,592,428.75 = 5,592,428.75 : x
  2. Step 2: Convert to fraction form
    3,985,488/5,592,428.75 = 5,592,428.75/x
  3. Step 3: Cross multiply
    3,985,488x = 5,592,428.75 × 5,592,428.75
  4. Step 4: Simplify right side
    3,985,488x = 31,275,259,323,826.56
  5. Step 5: Solve for x
    x = 31,275,259,323,826.56/3,985,488
  6. Step 6: Final answer
    x = 7,847,284.78

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.