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Finding the Fourth Proportional to 17,804.61, 26,702.26 and 5,321.84

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Solution

The fourth proportional to 17,804.61, 26,702.26 and 5,321.84 is: 7,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804.61 : 26,702.26 = 5,321.84 : x
  2. Step 2: Convert to fraction form
    17,804.61/26,702.26 = 5,321.84/x
  3. Step 3: Cross multiply
    17,804.61x = 26,702.26 × 5,321.84
  4. Step 4: Simplify right side
    17,804.61x = 142,105,008.54
  5. Step 5: Solve for x
    x = 142,105,008.54/17,804.61
  6. Step 6: Final answer
    x = 7,981.36

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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.