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Finding the Fourth Proportional to 7,960.82, 10,986.05 and 4,424.03

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Solution

The fourth proportional to 7,960.82, 10,986.05 and 4,424.03 is: 6,105.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.82 : 10,986.05 = 4,424.03 : x
  2. Step 2: Convert to fraction form
    7,960.82/10,986.05 = 4,424.03/x
  3. Step 3: Cross multiply
    7,960.82x = 10,986.05 × 4,424.03
  4. Step 4: Simplify right side
    7,960.82x = 48,602,537.73
  5. Step 5: Solve for x
    x = 48,602,537.73/7,960.82
  6. Step 6: Final answer
    x = 6,105.22

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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.