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Finding the Fourth Proportional to 23,674.60, 35,511.90 and 11,986.30

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Solution

The fourth proportional to 23,674.60, 35,511.90 and 11,986.30 is: 17,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,674.60 : 35,511.90 = 11,986.30 : x
  2. Step 2: Convert to fraction form
    23,674.60/35,511.90 = 11,986.30/x
  3. Step 3: Cross multiply
    23,674.60x = 35,511.90 × 11,986.30
  4. Step 4: Simplify right side
    23,674.60x = 425,656,286.97
  5. Step 5: Solve for x
    x = 425,656,286.97/23,674.60
  6. Step 6: Final answer
    x = 17,979.45

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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.