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Finding the Fourth Proportional to 17,931, 26,896.38 and 4,603.96

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Solution

The fourth proportional to 17,931, 26,896.38 and 4,603.96 is: 6,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931 : 26,896.38 = 4,603.96 : x
  2. Step 2: Convert to fraction form
    17,931/26,896.38 = 4,603.96/x
  3. Step 3: Cross multiply
    17,931x = 26,896.38 × 4,603.96
  4. Step 4: Simplify right side
    17,931x = 123,829,857.66
  5. Step 5: Solve for x
    x = 123,829,857.66/17,931
  6. Step 6: Final answer
    x = 6,905.91

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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.