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Finding the Fourth Proportional to 16,762.62, 25,143.48 and 5,669.22

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Solution

The fourth proportional to 16,762.62, 25,143.48 and 5,669.22 is: 8,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,762.62 : 25,143.48 = 5,669.22 : x
  2. Step 2: Convert to fraction form
    16,762.62/25,143.48 = 5,669.22/x
  3. Step 3: Cross multiply
    16,762.62x = 25,143.48 × 5,669.22
  4. Step 4: Simplify right side
    16,762.62x = 142,543,919.69
  5. Step 5: Solve for x
    x = 142,543,919.69/16,762.62
  6. Step 6: Final answer
    x = 8,503.68

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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.