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Finding the Fourth Proportional to 13,841.69, 20,762.53 and 3,453.53

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Solution

The fourth proportional to 13,841.69, 20,762.53 and 3,453.53 is: 5,180.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.69 : 20,762.53 = 3,453.53 : x
  2. Step 2: Convert to fraction form
    13,841.69/20,762.53 = 3,453.53/x
  3. Step 3: Cross multiply
    13,841.69x = 20,762.53 × 3,453.53
  4. Step 4: Simplify right side
    13,841.69x = 71,703,907.78
  5. Step 5: Solve for x
    x = 71,703,907.78/13,841.69
  6. Step 6: Final answer
    x = 5,180.29

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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.