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Finding the Fourth Proportional to 6,678.54, 9,216.22 and 3,694.31

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Solution

The fourth proportional to 6,678.54, 9,216.22 and 3,694.31 is: 5,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.54 : 9,216.22 = 3,694.31 : x
  2. Step 2: Convert to fraction form
    6,678.54/9,216.22 = 3,694.31/x
  3. Step 3: Cross multiply
    6,678.54x = 9,216.22 × 3,694.31
  4. Step 4: Simplify right side
    6,678.54x = 34,047,573.71
  5. Step 5: Solve for x
    x = 34,047,573.71/6,678.54
  6. Step 6: Final answer
    x = 5,098.06

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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.