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Finding the Fourth Proportional to 4,164, 6,246.06 and 1,086

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Solution

The fourth proportional to 4,164, 6,246.06 and 1,086 is: 1,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,164 : 6,246.06 = 1,086 : x
  2. Step 2: Convert to fraction form
    4,164/6,246.06 = 1,086/x
  3. Step 3: Cross multiply
    4,164x = 6,246.06 × 1,086
  4. Step 4: Simplify right side
    4,164x = 6,783,221.16
  5. Step 5: Solve for x
    x = 6,783,221.16/4,164
  6. Step 6: Final answer
    x = 1,629.02

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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.