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Finding the Fourth Proportional to 17,672.67, 26,507.70 and 5,193.66

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Solution

The fourth proportional to 17,672.67, 26,507.70 and 5,193.66 is: 7,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,672.67 : 26,507.70 = 5,193.66 : x
  2. Step 2: Convert to fraction form
    17,672.67/26,507.70 = 5,193.66/x
  3. Step 3: Cross multiply
    17,672.67x = 26,507.70 × 5,193.66
  4. Step 4: Simplify right side
    17,672.67x = 137,671,981.18
  5. Step 5: Solve for x
    x = 137,671,981.18/17,672.67
  6. Step 6: Final answer
    x = 7,790.11

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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.