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Finding the Fourth Proportional to 6,892.28, 9,511.07 and 3,748.47

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Solution

The fourth proportional to 6,892.28, 9,511.07 and 3,748.47 is: 5,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.28 : 9,511.07 = 3,748.47 : x
  2. Step 2: Convert to fraction form
    6,892.28/9,511.07 = 3,748.47/x
  3. Step 3: Cross multiply
    6,892.28x = 9,511.07 × 3,748.47
  4. Step 4: Simplify right side
    6,892.28x = 35,651,894.27
  5. Step 5: Solve for x
    x = 35,651,894.27/6,892.28
  6. Step 6: Final answer
    x = 5,172.73

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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.