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Finding the Third Proportional to 4,812 and 8,448

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Solution

The third proportional to 4,812 and 8,448 is: 14,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812 : 8,448 = 8,448 : x
  2. Step 2: Convert to fraction form
    4,812/8,448 = 8,448/x
  3. Step 3: Cross multiply
    4,812x = 8,448 × 8,448
  4. Step 4: Simplify right side
    4,812x = 71,368,704
  5. Step 5: Solve for x
    x = 71,368,704/4,812
  6. Step 6: Final answer
    x = 14,831.40

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.