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Finding the Fourth Proportional to 7,194.46, 9,918.78 and 5,394.28

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Solution

The fourth proportional to 7,194.46, 9,918.78 and 5,394.28 is: 7,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.46 : 9,918.78 = 5,394.28 : x
  2. Step 2: Convert to fraction form
    7,194.46/9,918.78 = 5,394.28/x
  3. Step 3: Cross multiply
    7,194.46x = 9,918.78 × 5,394.28
  4. Step 4: Simplify right side
    7,194.46x = 53,504,676.58
  5. Step 5: Solve for x
    x = 53,504,676.58/7,194.46
  6. Step 6: Final answer
    x = 7,436.93

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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.