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Finding the Third Proportional to 3,792 and 6,240

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Solution

The third proportional to 3,792 and 6,240 is: 10,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792 : 6,240 = 6,240 : x
  2. Step 2: Convert to fraction form
    3,792/6,240 = 6,240/x
  3. Step 3: Cross multiply
    3,792x = 6,240 × 6,240
  4. Step 4: Simplify right side
    3,792x = 38,937,600
  5. Step 5: Solve for x
    x = 38,937,600/3,792
  6. Step 6: Final answer
    x = 10,268.35

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.