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Finding the Fourth Proportional to 11,937.96, 17,900.76 and 5,358.48

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Solution

The fourth proportional to 11,937.96, 17,900.76 and 5,358.48 is: 8,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.96 : 17,900.76 = 5,358.48 : x
  2. Step 2: Convert to fraction form
    11,937.96/17,900.76 = 5,358.48/x
  3. Step 3: Cross multiply
    11,937.96x = 17,900.76 × 5,358.48
  4. Step 4: Simplify right side
    11,937.96x = 95,920,864.44
  5. Step 5: Solve for x
    x = 95,920,864.44/11,937.96
  6. Step 6: Final answer
    x = 8,034.95

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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.