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Finding the Third Proportional to 9,722.50 and 14,378.50

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Solution

The third proportional to 9,722.50 and 14,378.50 is: 21,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,722.50 : 14,378.50 = 14,378.50 : x
  2. Step 2: Convert to fraction form
    9,722.50/14,378.50 = 14,378.50/x
  3. Step 3: Cross multiply
    9,722.50x = 14,378.50 × 14,378.50
  4. Step 4: Simplify right side
    9,722.50x = 206,741,262.25
  5. Step 5: Solve for x
    x = 206,741,262.25/9,722.50
  6. Step 6: Final answer
    x = 21,264.21

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.