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Finding the Fourth Proportional to 8,738.70, 13,098.82 and 5,958.48

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Solution

The fourth proportional to 8,738.70, 13,098.82 and 5,958.48 is: 8,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.70 : 13,098.82 = 5,958.48 : x
  2. Step 2: Convert to fraction form
    8,738.70/13,098.82 = 5,958.48/x
  3. Step 3: Cross multiply
    8,738.70x = 13,098.82 × 5,958.48
  4. Step 4: Simplify right side
    8,738.70x = 78,049,056.99
  5. Step 5: Solve for x
    x = 78,049,056.99/8,738.70
  6. Step 6: Final answer
    x = 8,931.43

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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.