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Finding the Third Proportional to 1,314 and 1,998

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Solution

The third proportional to 1,314 and 1,998 is: 3,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314 : 1,998 = 1,998 : x
  2. Step 2: Convert to fraction form
    1,314/1,998 = 1,998/x
  3. Step 3: Cross multiply
    1,314x = 1,998 × 1,998
  4. Step 4: Simplify right side
    1,314x = 3,992,004
  5. Step 5: Solve for x
    x = 3,992,004/1,314
  6. Step 6: Final answer
    x = 3,038.05

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.