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Finding the Fourth Proportional to 7,081.58, 10,601.84 and 6,331.16

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Solution

The fourth proportional to 7,081.58, 10,601.84 and 6,331.16 is: 9,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.58 : 10,601.84 = 6,331.16 : x
  2. Step 2: Convert to fraction form
    7,081.58/10,601.84 = 6,331.16/x
  3. Step 3: Cross multiply
    7,081.58x = 10,601.84 × 6,331.16
  4. Step 4: Simplify right side
    7,081.58x = 67,121,945.33
  5. Step 5: Solve for x
    x = 67,121,945.33/7,081.58
  6. Step 6: Final answer
    x = 9,478.39

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1.5x scale

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.