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Finding the Fourth Proportional to 61,928, 85,476.54 and 37,745.36

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Solution

The fourth proportional to 61,928, 85,476.54 and 37,745.36 is: 52,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,928 : 85,476.54 = 37,745.36 : x
  2. Step 2: Convert to fraction form
    61,928/85,476.54 = 37,745.36/x
  3. Step 3: Cross multiply
    61,928x = 85,476.54 × 37,745.36
  4. Step 4: Simplify right side
    61,928x = 3,226,342,773.85
  5. Step 5: Solve for x
    x = 3,226,342,773.85/61,928
  6. Step 6: Final answer
    x = 52,098.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.