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Finding the Fourth Proportional to 10,750.70, 16,128.10 and 3,730.44

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Solution

The fourth proportional to 10,750.70, 16,128.10 and 3,730.44 is: 5,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,750.70 : 16,128.10 = 3,730.44 : x
  2. Step 2: Convert to fraction form
    10,750.70/16,128.10 = 3,730.44/x
  3. Step 3: Cross multiply
    10,750.70x = 16,128.10 × 3,730.44
  4. Step 4: Simplify right side
    10,750.70x = 60,164,909.36
  5. Step 5: Solve for x
    x = 60,164,909.36/10,750.70
  6. Step 6: Final answer
    x = 5,596.37

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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.