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Finding the Third Proportional to 30,904 and 35,278

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Solution

The third proportional to 30,904 and 35,278 is: 40,271.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,904 : 35,278 = 35,278 : x
  2. Step 2: Convert to fraction form
    30,904/35,278 = 35,278/x
  3. Step 3: Cross multiply
    30,904x = 35,278 × 35,278
  4. Step 4: Simplify right side
    30,904x = 1,244,537,284
  5. Step 5: Solve for x
    x = 1,244,537,284/30,904
  6. Step 6: Final answer
    x = 40,271.07

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.