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Finding the Third Proportional to 4,972.50 and 8,214.75

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Solution

The third proportional to 4,972.50 and 8,214.75 is: 13,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.50 : 8,214.75 = 8,214.75 : x
  2. Step 2: Convert to fraction form
    4,972.50/8,214.75 = 8,214.75/x
  3. Step 3: Cross multiply
    4,972.50x = 8,214.75 × 8,214.75
  4. Step 4: Simplify right side
    4,972.50x = 67,482,117.56
  5. Step 5: Solve for x
    x = 67,482,117.56/4,972.50
  6. Step 6: Final answer
    x = 13,571.06

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.