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Finding the Third Proportional to 4,620.38 and 6,981.19

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Solution

The third proportional to 4,620.38 and 6,981.19 is: 10,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.38 : 6,981.19 = 6,981.19 : x
  2. Step 2: Convert to fraction form
    4,620.38/6,981.19 = 6,981.19/x
  3. Step 3: Cross multiply
    4,620.38x = 6,981.19 × 6,981.19
  4. Step 4: Simplify right side
    4,620.38x = 48,736,978.91
  5. Step 5: Solve for x
    x = 48,736,978.91/4,620.38
  6. Step 6: Final answer
    x = 10,548.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.