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Finding the Fourth Proportional to 8,189.38, 11,301.42 and 4,463.38

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Solution

The fourth proportional to 8,189.38, 11,301.42 and 4,463.38 is: 6,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.38 : 11,301.42 = 4,463.38 : x
  2. Step 2: Convert to fraction form
    8,189.38/11,301.42 = 4,463.38/x
  3. Step 3: Cross multiply
    8,189.38x = 11,301.42 × 4,463.38
  4. Step 4: Simplify right side
    8,189.38x = 50,442,532.00
  5. Step 5: Solve for x
    x = 50,442,532.00/8,189.38
  6. Step 6: Final answer
    x = 6,159.51

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Half scale
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Double scale
Find fourth proportional to 8,190.38, 11,302.80 and 4,464.38
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.