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Finding the Third Proportional to 2,390 and 5,104

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Solution

The third proportional to 2,390 and 5,104 is: 10,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390 : 5,104 = 5,104 : x
  2. Step 2: Convert to fraction form
    2,390/5,104 = 5,104/x
  3. Step 3: Cross multiply
    2,390x = 5,104 × 5,104
  4. Step 4: Simplify right side
    2,390x = 26,050,816
  5. Step 5: Solve for x
    x = 26,050,816/2,390
  6. Step 6: Final answer
    x = 10,899.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.