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Finding the Third Proportional to 1,215,691.03 and 2,619,919.69

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Solution

The third proportional to 1,215,691.03 and 2,619,919.69 is: 5,646,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,691.03 : 2,619,919.69 = 2,619,919.69 : x
  2. Step 2: Convert to fraction form
    1,215,691.03/2,619,919.69 = 2,619,919.69/x
  3. Step 3: Cross multiply
    1,215,691.03x = 2,619,919.69 × 2,619,919.69
  4. Step 4: Simplify right side
    1,215,691.03x = 6,863,979,168,950.10
  5. Step 5: Solve for x
    x = 6,863,979,168,950.10/1,215,691.03
  6. Step 6: Final answer
    x = 5,646,154.32

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.