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Finding the Fourth Proportional to 5,393.11, 7,433.54 and 3,711.67

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Solution

The fourth proportional to 5,393.11, 7,433.54 and 3,711.67 is: 5,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.11 : 7,433.54 = 3,711.67 : x
  2. Step 2: Convert to fraction form
    5,393.11/7,433.54 = 3,711.67/x
  3. Step 3: Cross multiply
    5,393.11x = 7,433.54 × 3,711.67
  4. Step 4: Simplify right side
    5,393.11x = 27,590,828.85
  5. Step 5: Solve for x
    x = 27,590,828.85/5,393.11
  6. Step 6: Final answer
    x = 5,115.94

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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.