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Finding the Third Proportional to 1,871 and 2,735.50

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Solution

The third proportional to 1,871 and 2,735.50 is: 3,999.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871 : 2,735.50 = 2,735.50 : x
  2. Step 2: Convert to fraction form
    1,871/2,735.50 = 2,735.50/x
  3. Step 3: Cross multiply
    1,871x = 2,735.50 × 2,735.50
  4. Step 4: Simplify right side
    1,871x = 7,482,960.25
  5. Step 5: Solve for x
    x = 7,482,960.25/1,871
  6. Step 6: Final answer
    x = 3,999.44

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.