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Finding the Fourth Proportional to 11,216.93, 16,800.48 and 7,255.42

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Solution

The fourth proportional to 11,216.93, 16,800.48 and 7,255.42 is: 10,867.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.93 : 16,800.48 = 7,255.42 : x
  2. Step 2: Convert to fraction form
    11,216.93/16,800.48 = 7,255.42/x
  3. Step 3: Cross multiply
    11,216.93x = 16,800.48 × 7,255.42
  4. Step 4: Simplify right side
    11,216.93x = 121,894,496.60
  5. Step 5: Solve for x
    x = 121,894,496.60/11,216.93
  6. Step 6: Final answer
    x = 10,867.02

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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.