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Finding the Fourth Proportional to 8,924.91, 13,391.03 and 3,924.71

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Solution

The fourth proportional to 8,924.91, 13,391.03 and 3,924.71 is: 5,888.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924.91 : 13,391.03 = 3,924.71 : x
  2. Step 2: Convert to fraction form
    8,924.91/13,391.03 = 3,924.71/x
  3. Step 3: Cross multiply
    8,924.91x = 13,391.03 × 3,924.71
  4. Step 4: Simplify right side
    8,924.91x = 52,555,837.49
  5. Step 5: Solve for x
    x = 52,555,837.49/8,924.91
  6. Step 6: Final answer
    x = 5,888.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.