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Finding the Fourth Proportional to 6,809.95, 9,397.16 and 3,825.55

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Solution

The fourth proportional to 6,809.95, 9,397.16 and 3,825.55 is: 5,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.95 : 9,397.16 = 3,825.55 : x
  2. Step 2: Convert to fraction form
    6,809.95/9,397.16 = 3,825.55/x
  3. Step 3: Cross multiply
    6,809.95x = 9,397.16 × 3,825.55
  4. Step 4: Simplify right side
    6,809.95x = 35,949,286.31
  5. Step 5: Solve for x
    x = 35,949,286.31/6,809.95
  6. Step 6: Final answer
    x = 5,278.94

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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.