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Finding the Fourth Proportional to 7,216.05, 10,811.31 and 5,014.47

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Solution

The fourth proportional to 7,216.05, 10,811.31 and 5,014.47 is: 7,512.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.05 : 10,811.31 = 5,014.47 : x
  2. Step 2: Convert to fraction form
    7,216.05/10,811.31 = 5,014.47/x
  3. Step 3: Cross multiply
    7,216.05x = 10,811.31 × 5,014.47
  4. Step 4: Simplify right side
    7,216.05x = 54,212,989.66
  5. Step 5: Solve for x
    x = 54,212,989.66/7,216.05
  6. Step 6: Final answer
    x = 7,512.83

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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.