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Finding the Fourth Proportional to 7,883.46, 11,806.74 and 6,228.90

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Solution

The fourth proportional to 7,883.46, 11,806.74 and 6,228.90 is: 9,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.46 : 11,806.74 = 6,228.90 : x
  2. Step 2: Convert to fraction form
    7,883.46/11,806.74 = 6,228.90/x
  3. Step 3: Cross multiply
    7,883.46x = 11,806.74 × 6,228.90
  4. Step 4: Simplify right side
    7,883.46x = 73,543,002.79
  5. Step 5: Solve for x
    x = 73,543,002.79/7,883.46
  6. Step 6: Final answer
    x = 9,328.77

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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.