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Finding the Third Proportional to 1,674 and 4,140

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Solution

The third proportional to 1,674 and 4,140 is: 10,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674 : 4,140 = 4,140 : x
  2. Step 2: Convert to fraction form
    1,674/4,140 = 4,140/x
  3. Step 3: Cross multiply
    1,674x = 4,140 × 4,140
  4. Step 4: Simplify right side
    1,674x = 17,139,600
  5. Step 5: Solve for x
    x = 17,139,600/1,674
  6. Step 6: Final answer
    x = 10,238.71

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.