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Finding the Third Proportional to 2,015.30 and 3,114.07

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Solution

The third proportional to 2,015.30 and 3,114.07 is: 4,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.30 : 3,114.07 = 3,114.07 : x
  2. Step 2: Convert to fraction form
    2,015.30/3,114.07 = 3,114.07/x
  3. Step 3: Cross multiply
    2,015.30x = 3,114.07 × 3,114.07
  4. Step 4: Simplify right side
    2,015.30x = 9,697,433.91
  5. Step 5: Solve for x
    x = 9,697,433.91/2,015.30
  6. Step 6: Final answer
    x = 4,811.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.