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Finding the Third Proportional to 4,362 and 7,708

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Solution

The third proportional to 4,362 and 7,708 is: 13,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,362 : 7,708 = 7,708 : x
  2. Step 2: Convert to fraction form
    4,362/7,708 = 7,708/x
  3. Step 3: Cross multiply
    4,362x = 7,708 × 7,708
  4. Step 4: Simplify right side
    4,362x = 59,413,264
  5. Step 5: Solve for x
    x = 59,413,264/4,362
  6. Step 6: Final answer
    x = 13,620.65

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.