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Finding the Fourth Proportional to 6,168.81, 8,513.16 and 3,374.31

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Solution

The fourth proportional to 6,168.81, 8,513.16 and 3,374.31 is: 4,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.81 : 8,513.16 = 3,374.31 : x
  2. Step 2: Convert to fraction form
    6,168.81/8,513.16 = 3,374.31/x
  3. Step 3: Cross multiply
    6,168.81x = 8,513.16 × 3,374.31
  4. Step 4: Simplify right side
    6,168.81x = 28,726,040.92
  5. Step 5: Solve for x
    x = 28,726,040.92/6,168.81
  6. Step 6: Final answer
    x = 4,656.66

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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.