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Finding the Fourth Proportional to 6,924.34, 9,555.22 and 3,940.45

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Solution

The fourth proportional to 6,924.34, 9,555.22 and 3,940.45 is: 5,437.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,924.34 : 9,555.22 = 3,940.45 : x
  2. Step 2: Convert to fraction form
    6,924.34/9,555.22 = 3,940.45/x
  3. Step 3: Cross multiply
    6,924.34x = 9,555.22 × 3,940.45
  4. Step 4: Simplify right side
    6,924.34x = 37,651,825.52
  5. Step 5: Solve for x
    x = 37,651,825.52/6,924.34
  6. Step 6: Final answer
    x = 5,437.61

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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.