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Finding the Third Proportional to 5,130 and 5,859

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Solution

The third proportional to 5,130 and 5,859 is: 6,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130 : 5,859 = 5,859 : x
  2. Step 2: Convert to fraction form
    5,130/5,859 = 5,859/x
  3. Step 3: Cross multiply
    5,130x = 5,859 × 5,859
  4. Step 4: Simplify right side
    5,130x = 34,327,881
  5. Step 5: Solve for x
    x = 34,327,881/5,130
  6. Step 6: Final answer
    x = 6,691.59

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.