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Finding the Fourth Proportional to 11,771.57, 16,246.20 and 6,803.57

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Solution

The fourth proportional to 11,771.57, 16,246.20 and 6,803.57 is: 9,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.57 : 16,246.20 = 6,803.57 : x
  2. Step 2: Convert to fraction form
    11,771.57/16,246.20 = 6,803.57/x
  3. Step 3: Cross multiply
    11,771.57x = 16,246.20 × 6,803.57
  4. Step 4: Simplify right side
    11,771.57x = 110,532,158.93
  5. Step 5: Solve for x
    x = 110,532,158.93/11,771.57
  6. Step 6: Final answer
    x = 9,389.76

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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.