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Finding the Third Proportional to 2,052.50 and 4,515

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Solution

The third proportional to 2,052.50 and 4,515 is: 9,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.50 : 4,515 = 4,515 : x
  2. Step 2: Convert to fraction form
    2,052.50/4,515 = 4,515/x
  3. Step 3: Cross multiply
    2,052.50x = 4,515 × 4,515
  4. Step 4: Simplify right side
    2,052.50x = 20,385,225
  5. Step 5: Solve for x
    x = 20,385,225/2,052.50
  6. Step 6: Final answer
    x = 9,931.90

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.