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Finding the Third Proportional to 4,209.19 and 6,117.75

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Solution

The third proportional to 4,209.19 and 6,117.75 is: 8,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.19 : 6,117.75 = 6,117.75 : x
  2. Step 2: Convert to fraction form
    4,209.19/6,117.75 = 6,117.75/x
  3. Step 3: Cross multiply
    4,209.19x = 6,117.75 × 6,117.75
  4. Step 4: Simplify right side
    4,209.19x = 37,426,865.06
  5. Step 5: Solve for x
    x = 37,426,865.06/4,209.19
  6. Step 6: Final answer
    x = 8,891.71

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.