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Finding the Fourth Proportional to 7,194.29, 9,928.08 and 4,007.42

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Solution

The fourth proportional to 7,194.29, 9,928.08 and 4,007.42 is: 5,530.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.29 : 9,928.08 = 4,007.42 : x
  2. Step 2: Convert to fraction form
    7,194.29/9,928.08 = 4,007.42/x
  3. Step 3: Cross multiply
    7,194.29x = 9,928.08 × 4,007.42
  4. Step 4: Simplify right side
    7,194.29x = 39,785,986.35
  5. Step 5: Solve for x
    x = 39,785,986.35/7,194.29
  6. Step 6: Final answer
    x = 5,530.22

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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.