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Finding the Third Proportional to 6,856.75 and 10,240

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Solution

The third proportional to 6,856.75 and 10,240 is: 15,292.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.75 : 10,240 = 10,240 : x
  2. Step 2: Convert to fraction form
    6,856.75/10,240 = 10,240/x
  3. Step 3: Cross multiply
    6,856.75x = 10,240 × 10,240
  4. Step 4: Simplify right side
    6,856.75x = 104,857,600
  5. Step 5: Solve for x
    x = 104,857,600/6,856.75
  6. Step 6: Final answer
    x = 15,292.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.