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Finding the Third Proportional to 4,212,821.25 and 9,074,565

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Solution

The third proportional to 4,212,821.25 and 9,074,565 is: 19,546,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212,821.25 : 9,074,565 = 9,074,565 : x
  2. Step 2: Convert to fraction form
    4,212,821.25/9,074,565 = 9,074,565/x
  3. Step 3: Cross multiply
    4,212,821.25x = 9,074,565 × 9,074,565
  4. Step 4: Simplify right side
    4,212,821.25x = 82,347,729,939,225
  5. Step 5: Solve for x
    x = 82,347,729,939,225/4,212,821.25
  6. Step 6: Final answer
    x = 19,546,931.87

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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.