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Finding the Fourth Proportional to 17,702.67, 26,563.26 and 7,173.81

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Solution

The fourth proportional to 17,702.67, 26,563.26 and 7,173.81 is: 10,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,702.67 : 26,563.26 = 7,173.81 : x
  2. Step 2: Convert to fraction form
    17,702.67/26,563.26 = 7,173.81/x
  3. Step 3: Cross multiply
    17,702.67x = 26,563.26 × 7,173.81
  4. Step 4: Simplify right side
    17,702.67x = 190,559,780.22
  5. Step 5: Solve for x
    x = 190,559,780.22/17,702.67
  6. Step 6: Final answer
    x = 10,764.47

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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.