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Finding the Third Proportional to 1,609.50 and 2,487

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Solution

The third proportional to 1,609.50 and 2,487 is: 3,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.50 : 2,487 = 2,487 : x
  2. Step 2: Convert to fraction form
    1,609.50/2,487 = 2,487/x
  3. Step 3: Cross multiply
    1,609.50x = 2,487 × 2,487
  4. Step 4: Simplify right side
    1,609.50x = 6,185,169
  5. Step 5: Solve for x
    x = 6,185,169/1,609.50
  6. Step 6: Final answer
    x = 3,842.91

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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.