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Finding the Fourth Proportional to 6,980.92, 9,633.86 and 3,837.16

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Solution

The fourth proportional to 6,980.92, 9,633.86 and 3,837.16 is: 5,295.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.92 : 9,633.86 = 3,837.16 : x
  2. Step 2: Convert to fraction form
    6,980.92/9,633.86 = 3,837.16/x
  3. Step 3: Cross multiply
    6,980.92x = 9,633.86 × 3,837.16
  4. Step 4: Simplify right side
    6,980.92x = 36,966,662.24
  5. Step 5: Solve for x
    x = 36,966,662.24/6,980.92
  6. Step 6: Final answer
    x = 5,295.39

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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.