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Finding the Fourth Proportional to 19,613.44, 27,066 and 10,660.66

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Solution

The fourth proportional to 19,613.44, 27,066 and 10,660.66 is: 14,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.44 : 27,066 = 10,660.66 : x
  2. Step 2: Convert to fraction form
    19,613.44/27,066 = 10,660.66/x
  3. Step 3: Cross multiply
    19,613.44x = 27,066 × 10,660.66
  4. Step 4: Simplify right side
    19,613.44x = 288,541,423.56
  5. Step 5: Solve for x
    x = 288,541,423.56/19,613.44
  6. Step 6: Final answer
    x = 14,711.41

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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.