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Finding the Fourth Proportional to 8,163.85, 11,266.10 and 4,437.85

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Solution

The fourth proportional to 8,163.85, 11,266.10 and 4,437.85 is: 6,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.85 : 11,266.10 = 4,437.85 : x
  2. Step 2: Convert to fraction form
    8,163.85/11,266.10 = 4,437.85/x
  3. Step 3: Cross multiply
    8,163.85x = 11,266.10 × 4,437.85
  4. Step 4: Simplify right side
    8,163.85x = 49,997,261.89
  5. Step 5: Solve for x
    x = 49,997,261.89/8,163.85
  6. Step 6: Final answer
    x = 6,124.23

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Double scale
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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.