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Finding the Third Proportional to 1,999 and 3,068.50

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Solution

The third proportional to 1,999 and 3,068.50 is: 4,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999 : 3,068.50 = 3,068.50 : x
  2. Step 2: Convert to fraction form
    1,999/3,068.50 = 3,068.50/x
  3. Step 3: Cross multiply
    1,999x = 3,068.50 × 3,068.50
  4. Step 4: Simplify right side
    1,999x = 9,415,692.25
  5. Step 5: Solve for x
    x = 9,415,692.25/1,999
  6. Step 6: Final answer
    x = 4,710.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.