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Finding the Fourth Proportional to 58,996.56, 81,445.44 and 39,976.86

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Solution

The fourth proportional to 58,996.56, 81,445.44 and 39,976.86 is: 55,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,996.56 : 81,445.44 = 39,976.86 : x
  2. Step 2: Convert to fraction form
    58,996.56/81,445.44 = 39,976.86/x
  3. Step 3: Cross multiply
    58,996.56x = 81,445.44 × 39,976.86
  4. Step 4: Simplify right side
    58,996.56x = 3,255,932,952.52
  5. Step 5: Solve for x
    x = 3,255,932,952.52/58,996.56
  6. Step 6: Final answer
    x = 55,188.52

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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.