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Finding the Third Proportional to 211,555.50 and 461,691

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Solution

The third proportional to 211,555.50 and 461,691 is: 1,007,577.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,555.50 : 461,691 = 461,691 : x
  2. Step 2: Convert to fraction form
    211,555.50/461,691 = 461,691/x
  3. Step 3: Cross multiply
    211,555.50x = 461,691 × 461,691
  4. Step 4: Simplify right side
    211,555.50x = 213,158,579,481
  5. Step 5: Solve for x
    x = 213,158,579,481/211,555.50
  6. Step 6: Final answer
    x = 1,007,577.58

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.