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Finding the Fourth Proportional to 8,165.42, 11,268.24 and 4,439.42

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Solution

The fourth proportional to 8,165.42, 11,268.24 and 4,439.42 is: 6,126.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.42 : 11,268.24 = 4,439.42 : x
  2. Step 2: Convert to fraction form
    8,165.42/11,268.24 = 4,439.42/x
  3. Step 3: Cross multiply
    8,165.42x = 11,268.24 × 4,439.42
  4. Step 4: Simplify right side
    8,165.42x = 50,024,450.02
  5. Step 5: Solve for x
    x = 50,024,450.02/8,165.42
  6. Step 6: Final answer
    x = 6,126.38

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Half scale
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Double scale
Find fourth proportional to 8,166.42, 11,269.62 and 4,440.42
Similar ratio
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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.