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Finding the Fourth Proportional to 67,879.93, 93,679.43 and 37,670.96

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Solution

The fourth proportional to 67,879.93, 93,679.43 and 37,670.96 is: 51,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,879.93 : 93,679.43 = 37,670.96 : x
  2. Step 2: Convert to fraction form
    67,879.93/93,679.43 = 37,670.96/x
  3. Step 3: Cross multiply
    67,879.93x = 93,679.43 × 37,670.96
  4. Step 4: Simplify right side
    67,879.93x = 3,528,994,060.35
  5. Step 5: Solve for x
    x = 3,528,994,060.35/67,879.93
  6. Step 6: Final answer
    x = 51,988.77

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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.