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Finding the Fourth Proportional to 7,866.45, 11,799.68 and 2,672.37

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Solution

The fourth proportional to 7,866.45, 11,799.68 and 2,672.37 is: 4,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.45 : 11,799.68 = 2,672.37 : x
  2. Step 2: Convert to fraction form
    7,866.45/11,799.68 = 2,672.37/x
  3. Step 3: Cross multiply
    7,866.45x = 11,799.68 × 2,672.37
  4. Step 4: Simplify right side
    7,866.45x = 31,533,110.84
  5. Step 5: Solve for x
    x = 31,533,110.84/7,866.45
  6. Step 6: Final answer
    x = 4,008.56

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Similar ratio
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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.