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Finding the Fourth Proportional to 6,156.88, 8,498.86 and 5,500.78

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Solution

The fourth proportional to 6,156.88, 8,498.86 and 5,500.78 is: 7,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,156.88 : 8,498.86 = 5,500.78 : x
  2. Step 2: Convert to fraction form
    6,156.88/8,498.86 = 5,500.78/x
  3. Step 3: Cross multiply
    6,156.88x = 8,498.86 × 5,500.78
  4. Step 4: Simplify right side
    6,156.88x = 46,750,324.11
  5. Step 5: Solve for x
    x = 46,750,324.11/6,156.88
  6. Step 6: Final answer
    x = 7,593.19

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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.