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Finding the Fourth Proportional to 8,370, 11,550.96 and 4,644

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Solution

The fourth proportional to 8,370, 11,550.96 and 4,644 is: 6,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370 : 11,550.96 = 4,644 : x
  2. Step 2: Convert to fraction form
    8,370/11,550.96 = 4,644/x
  3. Step 3: Cross multiply
    8,370x = 11,550.96 × 4,644
  4. Step 4: Simplify right side
    8,370x = 53,642,658.24
  5. Step 5: Solve for x
    x = 53,642,658.24/8,370
  6. Step 6: Final answer
    x = 6,408.92

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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.