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Finding the Fourth Proportional to 8,408.70, 11,593.17 and 5,751.50

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Solution

The fourth proportional to 8,408.70, 11,593.17 and 5,751.50 is: 7,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.70 : 11,593.17 = 5,751.50 : x
  2. Step 2: Convert to fraction form
    8,408.70/11,593.17 = 5,751.50/x
  3. Step 3: Cross multiply
    8,408.70x = 11,593.17 × 5,751.50
  4. Step 4: Simplify right side
    8,408.70x = 66,678,059.29
  5. Step 5: Solve for x
    x = 66,678,059.29/8,408.70
  6. Step 6: Final answer
    x = 7,929.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.