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Finding the Fourth Proportional to 6,758.77, 9,326.59 and 4,240.75

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Solution

The fourth proportional to 6,758.77, 9,326.59 and 4,240.75 is: 5,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,758.77 : 9,326.59 = 4,240.75 : x
  2. Step 2: Convert to fraction form
    6,758.77/9,326.59 = 4,240.75/x
  3. Step 3: Cross multiply
    6,758.77x = 9,326.59 × 4,240.75
  4. Step 4: Simplify right side
    6,758.77x = 39,551,736.54
  5. Step 5: Solve for x
    x = 39,551,736.54/6,758.77
  6. Step 6: Final answer
    x = 5,851.91

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Double scale
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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.