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Finding the Third Proportional to 1,561 and 3,094

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Solution

The third proportional to 1,561 and 3,094 is: 6,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561 : 3,094 = 3,094 : x
  2. Step 2: Convert to fraction form
    1,561/3,094 = 3,094/x
  3. Step 3: Cross multiply
    1,561x = 3,094 × 3,094
  4. Step 4: Simplify right side
    1,561x = 9,572,836
  5. Step 5: Solve for x
    x = 9,572,836/1,561
  6. Step 6: Final answer
    x = 6,132.50

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.