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Finding the Third Proportional to 1,874 and 5,090

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Solution

The third proportional to 1,874 and 5,090 is: 13,825.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874 : 5,090 = 5,090 : x
  2. Step 2: Convert to fraction form
    1,874/5,090 = 5,090/x
  3. Step 3: Cross multiply
    1,874x = 5,090 × 5,090
  4. Step 4: Simplify right side
    1,874x = 25,908,100
  5. Step 5: Solve for x
    x = 25,908,100/1,874
  6. Step 6: Final answer
    x = 13,825.03

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.