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Finding the Fourth Proportional to 7,194.42, 9,928.14 and 4,007.70

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Solution

The fourth proportional to 7,194.42, 9,928.14 and 4,007.70 is: 5,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.42 : 9,928.14 = 4,007.70 : x
  2. Step 2: Convert to fraction form
    7,194.42/9,928.14 = 4,007.70/x
  3. Step 3: Cross multiply
    7,194.42x = 9,928.14 × 4,007.70
  4. Step 4: Simplify right side
    7,194.42x = 39,789,006.68
  5. Step 5: Solve for x
    x = 39,789,006.68/7,194.42
  6. Step 6: Final answer
    x = 5,530.54

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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.