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Finding the Fourth Proportional to 6,693.52, 9,236.90 and 3,860.90

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Solution

The fourth proportional to 6,693.52, 9,236.90 and 3,860.90 is: 5,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.52 : 9,236.90 = 3,860.90 : x
  2. Step 2: Convert to fraction form
    6,693.52/9,236.90 = 3,860.90/x
  3. Step 3: Cross multiply
    6,693.52x = 9,236.90 × 3,860.90
  4. Step 4: Simplify right side
    6,693.52x = 35,662,716.36
  5. Step 5: Solve for x
    x = 35,662,716.36/6,693.52
  6. Step 6: Final answer
    x = 5,327.95

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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.