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Finding the Third Proportional to 25,090 and 35,115

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Solution

The third proportional to 25,090 and 35,115 is: 49,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,090 : 35,115 = 35,115 : x
  2. Step 2: Convert to fraction form
    25,090/35,115 = 35,115/x
  3. Step 3: Cross multiply
    25,090x = 35,115 × 35,115
  4. Step 4: Simplify right side
    25,090x = 1,233,063,225
  5. Step 5: Solve for x
    x = 1,233,063,225/25,090
  6. Step 6: Final answer
    x = 49,145.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.