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Finding the Fourth Proportional to 9,367.72, 12,927.23 and 5,118.79

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Solution

The fourth proportional to 9,367.72, 12,927.23 and 5,118.79 is: 7,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.72 : 12,927.23 = 5,118.79 : x
  2. Step 2: Convert to fraction form
    9,367.72/12,927.23 = 5,118.79/x
  3. Step 3: Cross multiply
    9,367.72x = 12,927.23 × 5,118.79
  4. Step 4: Simplify right side
    9,367.72x = 66,171,756.13
  5. Step 5: Solve for x
    x = 66,171,756.13/9,367.72
  6. Step 6: Final answer
    x = 7,063.81

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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.