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Finding the Third Proportional to 1,103,159.25 and 1,686,814.88

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Solution

The third proportional to 1,103,159.25 and 1,686,814.88 is: 2,579,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,159.25 : 1,686,814.88 = 1,686,814.88 : x
  2. Step 2: Convert to fraction form
    1,103,159.25/1,686,814.88 = 1,686,814.88/x
  3. Step 3: Cross multiply
    1,103,159.25x = 1,686,814.88 × 1,686,814.88
  4. Step 4: Simplify right side
    1,103,159.25x = 2,845,344,422,521.27
  5. Step 5: Solve for x
    x = 2,845,344,422,521.27/1,103,159.25
  6. Step 6: Final answer
    x = 2,579,268.97

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.