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Finding the Fourth Proportional to 66,961.92, 92,403.84 and 37,152

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Solution

The fourth proportional to 66,961.92, 92,403.84 and 37,152 is: 51,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,961.92 : 92,403.84 = 37,152 : x
  2. Step 2: Convert to fraction form
    66,961.92/92,403.84 = 37,152/x
  3. Step 3: Cross multiply
    66,961.92x = 92,403.84 × 37,152
  4. Step 4: Simplify right side
    66,961.92x = 3,432,987,463.68
  5. Step 5: Solve for x
    x = 3,432,987,463.68/66,961.92
  6. Step 6: Final answer
    x = 51,267.76

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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.