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Finding the Third Proportional to 1,931,151.38 and 2,921,578.88

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Solution

The third proportional to 1,931,151.38 and 2,921,578.88 is: 4,419,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,151.38 : 2,921,578.88 = 2,921,578.88 : x
  2. Step 2: Convert to fraction form
    1,931,151.38/2,921,578.88 = 2,921,578.88/x
  3. Step 3: Cross multiply
    1,931,151.38x = 2,921,578.88 × 2,921,578.88
  4. Step 4: Simplify right side
    1,931,151.38x = 8,535,623,122,846.27
  5. Step 5: Solve for x
    x = 8,535,623,122,846.27/1,931,151.38
  6. Step 6: Final answer
    x = 4,419,965.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.