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Finding the Fourth Proportional to 9,367.77, 12,927.30 and 5,118.86

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Solution

The fourth proportional to 9,367.77, 12,927.30 and 5,118.86 is: 7,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.77 : 12,927.30 = 5,118.86 : x
  2. Step 2: Convert to fraction form
    9,367.77/12,927.30 = 5,118.86/x
  3. Step 3: Cross multiply
    9,367.77x = 12,927.30 × 5,118.86
  4. Step 4: Simplify right side
    9,367.77x = 66,172,974.24
  5. Step 5: Solve for x
    x = 66,172,974.24/9,367.77
  6. Step 6: Final answer
    x = 7,063.90

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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.