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Finding the Third Proportional to 1,161,555.38 and 2,491,257.28

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Solution

The third proportional to 1,161,555.38 and 2,491,257.28 is: 5,343,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,555.38 : 2,491,257.28 = 2,491,257.28 : x
  2. Step 2: Convert to fraction form
    1,161,555.38/2,491,257.28 = 2,491,257.28/x
  3. Step 3: Cross multiply
    1,161,555.38x = 2,491,257.28 × 2,491,257.28
  4. Step 4: Simplify right side
    1,161,555.38x = 6,206,362,841,381.14
  5. Step 5: Solve for x
    x = 6,206,362,841,381.14/1,161,555.38
  6. Step 6: Final answer
    x = 5,343,148.48

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.