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Finding the Fourth Proportional to 7,211.84, 9,944.15 and 5,881.41

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Solution

The fourth proportional to 7,211.84, 9,944.15 and 5,881.41 is: 8,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.84 : 9,944.15 = 5,881.41 : x
  2. Step 2: Convert to fraction form
    7,211.84/9,944.15 = 5,881.41/x
  3. Step 3: Cross multiply
    7,211.84x = 9,944.15 × 5,881.41
  4. Step 4: Simplify right side
    7,211.84x = 58,485,593.84
  5. Step 5: Solve for x
    x = 58,485,593.84/7,211.84
  6. Step 6: Final answer
    x = 8,109.67

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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.