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Finding the Third Proportional to 2,143.13 and 4,016.67

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Solution

The third proportional to 2,143.13 and 4,016.67 is: 7,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.13 : 4,016.67 = 4,016.67 : x
  2. Step 2: Convert to fraction form
    2,143.13/4,016.67 = 4,016.67/x
  3. Step 3: Cross multiply
    2,143.13x = 4,016.67 × 4,016.67
  4. Step 4: Simplify right side
    2,143.13x = 16,133,652.95
  5. Step 5: Solve for x
    x = 16,133,652.95/2,143.13
  6. Step 6: Final answer
    x = 7,528.10

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.