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Finding the Third Proportional to 913 and 1,655

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Solution

The third proportional to 913 and 1,655 is: 3,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    913 : 1,655 = 1,655 : x
  2. Step 2: Convert to fraction form
    913/1,655 = 1,655/x
  3. Step 3: Cross multiply
    913x = 1,655 × 1,655
  4. Step 4: Simplify right side
    913x = 2,739,025
  5. Step 5: Solve for x
    x = 2,739,025/913
  6. Step 6: Final answer
    x = 3,000.03

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.