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Finding the Fourth Proportional to 7,227.05, 9,972.97 and 4,243.62

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Solution

The fourth proportional to 7,227.05, 9,972.97 and 4,243.62 is: 5,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.05 : 9,972.97 = 4,243.62 : x
  2. Step 2: Convert to fraction form
    7,227.05/9,972.97 = 4,243.62/x
  3. Step 3: Cross multiply
    7,227.05x = 9,972.97 × 4,243.62
  4. Step 4: Simplify right side
    7,227.05x = 42,321,484.34
  5. Step 5: Solve for x
    x = 42,321,484.34/7,227.05
  6. Step 6: Final answer
    x = 5,855.98

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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.