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Finding the Fourth Proportional to 8,958.70, 12,367.11 and 5,816.98

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Solution

The fourth proportional to 8,958.70, 12,367.11 and 5,816.98 is: 8,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.70 : 12,367.11 = 5,816.98 : x
  2. Step 2: Convert to fraction form
    8,958.70/12,367.11 = 5,816.98/x
  3. Step 3: Cross multiply
    8,958.70x = 12,367.11 × 5,816.98
  4. Step 4: Simplify right side
    8,958.70x = 71,939,231.53
  5. Step 5: Solve for x
    x = 71,939,231.53/8,958.70
  6. Step 6: Final answer
    x = 8,030.10

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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.