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Finding the Third Proportional to 5,130 and 8,298

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Solution

The third proportional to 5,130 and 8,298 is: 13,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130 : 8,298 = 8,298 : x
  2. Step 2: Convert to fraction form
    5,130/8,298 = 8,298/x
  3. Step 3: Cross multiply
    5,130x = 8,298 × 8,298
  4. Step 4: Simplify right side
    5,130x = 68,856,804
  5. Step 5: Solve for x
    x = 68,856,804/5,130
  6. Step 6: Final answer
    x = 13,422.38

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.