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Finding the Fourth Proportional to 7,193.80, 9,928.03 and 4,007.71

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Solution

The fourth proportional to 7,193.80, 9,928.03 and 4,007.71 is: 5,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.80 : 9,928.03 = 4,007.71 : x
  2. Step 2: Convert to fraction form
    7,193.80/9,928.03 = 4,007.71/x
  3. Step 3: Cross multiply
    7,193.80x = 9,928.03 × 4,007.71
  4. Step 4: Simplify right side
    7,193.80x = 39,788,665.11
  5. Step 5: Solve for x
    x = 39,788,665.11/7,193.80
  6. Step 6: Final answer
    x = 5,530.97

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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.