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Finding the Fourth Proportional to 7,203.18, 9,941.18 and 4,178.97

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Solution

The fourth proportional to 7,203.18, 9,941.18 and 4,178.97 is: 5,767.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.18 : 9,941.18 = 4,178.97 : x
  2. Step 2: Convert to fraction form
    7,203.18/9,941.18 = 4,178.97/x
  3. Step 3: Cross multiply
    7,203.18x = 9,941.18 × 4,178.97
  4. Step 4: Simplify right side
    7,203.18x = 41,543,843.28
  5. Step 5: Solve for x
    x = 41,543,843.28/7,203.18
  6. Step 6: Final answer
    x = 5,767.43

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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.