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Finding the Fourth Proportional to 6,892.19, 9,511.19 and 3,748.38

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Solution

The fourth proportional to 6,892.19, 9,511.19 and 3,748.38 is: 5,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.19 : 9,511.19 = 3,748.38 : x
  2. Step 2: Convert to fraction form
    6,892.19/9,511.19 = 3,748.38/x
  3. Step 3: Cross multiply
    6,892.19x = 9,511.19 × 3,748.38
  4. Step 4: Simplify right side
    6,892.19x = 35,651,514.02
  5. Step 5: Solve for x
    x = 35,651,514.02/6,892.19
  6. Step 6: Final answer
    x = 5,172.74

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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.