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Finding the Third Proportional to 4,720 and 10,340

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Solution

The third proportional to 4,720 and 10,340 is: 22,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720 : 10,340 = 10,340 : x
  2. Step 2: Convert to fraction form
    4,720/10,340 = 10,340/x
  3. Step 3: Cross multiply
    4,720x = 10,340 × 10,340
  4. Step 4: Simplify right side
    4,720x = 106,915,600
  5. Step 5: Solve for x
    x = 106,915,600/4,720
  6. Step 6: Final answer
    x = 22,651.61

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.