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Finding the Third Proportional to 1,910 and 3,153

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Solution

The third proportional to 1,910 and 3,153 is: 5,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910 : 3,153 = 3,153 : x
  2. Step 2: Convert to fraction form
    1,910/3,153 = 3,153/x
  3. Step 3: Cross multiply
    1,910x = 3,153 × 3,153
  4. Step 4: Simplify right side
    1,910x = 9,941,409
  5. Step 5: Solve for x
    x = 9,941,409/1,910
  6. Step 6: Final answer
    x = 5,204.93

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.