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Finding the Fourth Proportional to 7,867.98, 11,800.96 and 2,321.91

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Solution

The fourth proportional to 7,867.98, 11,800.96 and 2,321.91 is: 3,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.98 : 11,800.96 = 2,321.91 : x
  2. Step 2: Convert to fraction form
    7,867.98/11,800.96 = 2,321.91/x
  3. Step 3: Cross multiply
    7,867.98x = 11,800.96 × 2,321.91
  4. Step 4: Simplify right side
    7,867.98x = 27,400,796.54
  5. Step 5: Solve for x
    x = 27,400,796.54/7,867.98
  6. Step 6: Final answer
    x = 3,482.57

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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.