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Finding the Third Proportional to 14,152.50 and 15,621.75

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Solution

The third proportional to 14,152.50 and 15,621.75 is: 17,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.50 : 15,621.75 = 15,621.75 : x
  2. Step 2: Convert to fraction form
    14,152.50/15,621.75 = 15,621.75/x
  3. Step 3: Cross multiply
    14,152.50x = 15,621.75 × 15,621.75
  4. Step 4: Simplify right side
    14,152.50x = 244,039,073.06
  5. Step 5: Solve for x
    x = 244,039,073.06/14,152.50
  6. Step 6: Final answer
    x = 17,243.53

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.