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Finding the Fourth Proportional to 6,167.80, 9,227.40 and 5,355.10

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Solution

The fourth proportional to 6,167.80, 9,227.40 and 5,355.10 is: 8,011.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,167.80 : 9,227.40 = 5,355.10 : x
  2. Step 2: Convert to fraction form
    6,167.80/9,227.40 = 5,355.10/x
  3. Step 3: Cross multiply
    6,167.80x = 9,227.40 × 5,355.10
  4. Step 4: Simplify right side
    6,167.80x = 49,413,649.74
  5. Step 5: Solve for x
    x = 49,413,649.74/6,167.80
  6. Step 6: Final answer
    x = 8,011.55

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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.