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Finding the Fourth Proportional to 7,717.05, 11,576.97 and 5,890.86

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Solution

The fourth proportional to 7,717.05, 11,576.97 and 5,890.86 is: 8,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.05 : 11,576.97 = 5,890.86 : x
  2. Step 2: Convert to fraction form
    7,717.05/11,576.97 = 5,890.86/x
  3. Step 3: Cross multiply
    7,717.05x = 11,576.97 × 5,890.86
  4. Step 4: Simplify right side
    7,717.05x = 68,198,309.49
  5. Step 5: Solve for x
    x = 68,198,309.49/7,717.05
  6. Step 6: Final answer
    x = 8,837.35

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Half scale
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Double scale
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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.