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Finding the Third Proportional to 1,999 and 2,444.50

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Solution

The third proportional to 1,999 and 2,444.50 is: 2,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999 : 2,444.50 = 2,444.50 : x
  2. Step 2: Convert to fraction form
    1,999/2,444.50 = 2,444.50/x
  3. Step 3: Cross multiply
    1,999x = 2,444.50 × 2,444.50
  4. Step 4: Simplify right side
    1,999x = 5,975,580.25
  5. Step 5: Solve for x
    x = 5,975,580.25/1,999
  6. Step 6: Final answer
    x = 2,989.28

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.