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Finding the Fourth Proportional to 5,687.26, 7,843.78 and 4,775.25

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Solution

The fourth proportional to 5,687.26, 7,843.78 and 4,775.25 is: 6,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.26 : 7,843.78 = 4,775.25 : x
  2. Step 2: Convert to fraction form
    5,687.26/7,843.78 = 4,775.25/x
  3. Step 3: Cross multiply
    5,687.26x = 7,843.78 × 4,775.25
  4. Step 4: Simplify right side
    5,687.26x = 37,455,998.51
  5. Step 5: Solve for x
    x = 37,455,998.51/5,687.26
  6. Step 6: Final answer
    x = 6,585.95

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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.