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Finding the Third Proportional to 3,054 and 4,139

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Solution

The third proportional to 3,054 and 4,139 is: 5,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054 : 4,139 = 4,139 : x
  2. Step 2: Convert to fraction form
    3,054/4,139 = 4,139/x
  3. Step 3: Cross multiply
    3,054x = 4,139 × 4,139
  4. Step 4: Simplify right side
    3,054x = 17,131,321
  5. Step 5: Solve for x
    x = 17,131,321/3,054
  6. Step 6: Final answer
    x = 5,609.47

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.