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Finding the Fourth Proportional to 17,812.47, 26,701.09 and 8,436.02

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Solution

The fourth proportional to 17,812.47, 26,701.09 and 8,436.02 is: 12,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.47 : 26,701.09 = 8,436.02 : x
  2. Step 2: Convert to fraction form
    17,812.47/26,701.09 = 8,436.02/x
  3. Step 3: Cross multiply
    17,812.47x = 26,701.09 × 8,436.02
  4. Step 4: Simplify right side
    17,812.47x = 225,250,753.58
  5. Step 5: Solve for x
    x = 225,250,753.58/17,812.47
  6. Step 6: Final answer
    x = 12,645.68

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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.