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Finding the Third Proportional to 1,777 and 3,127

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Solution

The third proportional to 1,777 and 3,127 is: 5,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777 : 3,127 = 3,127 : x
  2. Step 2: Convert to fraction form
    1,777/3,127 = 3,127/x
  3. Step 3: Cross multiply
    1,777x = 3,127 × 3,127
  4. Step 4: Simplify right side
    1,777x = 9,778,129
  5. Step 5: Solve for x
    x = 9,778,129/1,777
  6. Step 6: Final answer
    x = 5,502.60

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.