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Finding the Fourth Proportional to 59,991.74, 89,952.78 and 20,538.26

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Solution

The fourth proportional to 59,991.74, 89,952.78 and 20,538.26 is: 30,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,991.74 : 89,952.78 = 20,538.26 : x
  2. Step 2: Convert to fraction form
    59,991.74/89,952.78 = 20,538.26/x
  3. Step 3: Cross multiply
    59,991.74x = 89,952.78 × 20,538.26
  4. Step 4: Simplify right side
    59,991.74x = 1,847,473,583.36
  5. Step 5: Solve for x
    x = 1,847,473,583.36/59,991.74
  6. Step 6: Final answer
    x = 30,795.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.