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Finding the Fourth Proportional to 58,707.62, 81,020.53 and 33,213.98

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Solution

The fourth proportional to 58,707.62, 81,020.53 and 33,213.98 is: 45,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,707.62 : 81,020.53 = 33,213.98 : x
  2. Step 2: Convert to fraction form
    58,707.62/81,020.53 = 33,213.98/x
  3. Step 3: Cross multiply
    58,707.62x = 81,020.53 × 33,213.98
  4. Step 4: Simplify right side
    58,707.62x = 2,691,014,472.50
  5. Step 5: Solve for x
    x = 2,691,014,472.50/58,707.62
  6. Step 6: Final answer
    x = 45,837.56

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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.