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Finding the Fourth Proportional to 6,892.74, 9,512.45 and 3,908.59

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Solution

The fourth proportional to 6,892.74, 9,512.45 and 3,908.59 is: 5,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.74 : 9,512.45 = 3,908.59 : x
  2. Step 2: Convert to fraction form
    6,892.74/9,512.45 = 3,908.59/x
  3. Step 3: Cross multiply
    6,892.74x = 9,512.45 × 3,908.59
  4. Step 4: Simplify right side
    6,892.74x = 37,180,266.95
  5. Step 5: Solve for x
    x = 37,180,266.95/6,892.74
  6. Step 6: Final answer
    x = 5,394.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.