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Finding the Fourth Proportional to 6,201.55, 8,555.28 and 5,494.12

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Solution

The fourth proportional to 6,201.55, 8,555.28 and 5,494.12 is: 7,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,201.55 : 8,555.28 = 5,494.12 : x
  2. Step 2: Convert to fraction form
    6,201.55/8,555.28 = 5,494.12/x
  3. Step 3: Cross multiply
    6,201.55x = 8,555.28 × 5,494.12
  4. Step 4: Simplify right side
    6,201.55x = 47,003,734.95
  5. Step 5: Solve for x
    x = 47,003,734.95/6,201.55
  6. Step 6: Final answer
    x = 7,579.35

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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.