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Finding the Fourth Proportional to 5,503.86, 8,255.70 and 2,216.87

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Solution

The fourth proportional to 5,503.86, 8,255.70 and 2,216.87 is: 3,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503.86 : 8,255.70 = 2,216.87 : x
  2. Step 2: Convert to fraction form
    5,503.86/8,255.70 = 2,216.87/x
  3. Step 3: Cross multiply
    5,503.86x = 8,255.70 × 2,216.87
  4. Step 4: Simplify right side
    5,503.86x = 18,301,813.66
  5. Step 5: Solve for x
    x = 18,301,813.66/5,503.86
  6. Step 6: Final answer
    x = 3,325.27

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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.