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Finding the Fourth Proportional to 11,576.60, 17,364.90 and 3,786.20

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Solution

The fourth proportional to 11,576.60, 17,364.90 and 3,786.20 is: 5,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,576.60 : 17,364.90 = 3,786.20 : x
  2. Step 2: Convert to fraction form
    11,576.60/17,364.90 = 3,786.20/x
  3. Step 3: Cross multiply
    11,576.60x = 17,364.90 × 3,786.20
  4. Step 4: Simplify right side
    11,576.60x = 65,746,984.38
  5. Step 5: Solve for x
    x = 65,746,984.38/11,576.60
  6. Step 6: Final answer
    x = 5,679.30

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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.