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Finding the Fourth Proportional to 12,203.81, 16,841.27 and 6,614.81

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Solution

The fourth proportional to 12,203.81, 16,841.27 and 6,614.81 is: 9,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.81 : 16,841.27 = 6,614.81 : x
  2. Step 2: Convert to fraction form
    12,203.81/16,841.27 = 6,614.81/x
  3. Step 3: Cross multiply
    12,203.81x = 16,841.27 × 6,614.81
  4. Step 4: Simplify right side
    12,203.81x = 111,401,859.85
  5. Step 5: Solve for x
    x = 111,401,859.85/12,203.81
  6. Step 6: Final answer
    x = 9,128.45

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1.5x scale

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.