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Finding the Fourth Proportional to 14,717.71, 20,310.62 and 8,003.51

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Solution

The fourth proportional to 14,717.71, 20,310.62 and 8,003.51 is: 11,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,717.71 : 20,310.62 = 8,003.51 : x
  2. Step 2: Convert to fraction form
    14,717.71/20,310.62 = 8,003.51/x
  3. Step 3: Cross multiply
    14,717.71x = 20,310.62 × 8,003.51
  4. Step 4: Simplify right side
    14,717.71x = 162,556,252.40
  5. Step 5: Solve for x
    x = 162,556,252.40/14,717.71
  6. Step 6: Final answer
    x = 11,044.94

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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.