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Finding the Fourth Proportional to 8,909.44, 13,365.60 and 2,752

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Solution

The fourth proportional to 8,909.44, 13,365.60 and 2,752 is: 4,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.44 : 13,365.60 = 2,752 : x
  2. Step 2: Convert to fraction form
    8,909.44/13,365.60 = 2,752/x
  3. Step 3: Cross multiply
    8,909.44x = 13,365.60 × 2,752
  4. Step 4: Simplify right side
    8,909.44x = 36,782,131.20
  5. Step 5: Solve for x
    x = 36,782,131.20/8,909.44
  6. Step 6: Final answer
    x = 4,128.44

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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.