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Finding the Fourth Proportional to 59,990.60, 82,787.64 and 33,133.76

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Solution

The fourth proportional to 59,990.60, 82,787.64 and 33,133.76 is: 45,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990.60 : 82,787.64 = 33,133.76 : x
  2. Step 2: Convert to fraction form
    59,990.60/82,787.64 = 33,133.76/x
  3. Step 3: Cross multiply
    59,990.60x = 82,787.64 × 33,133.76
  4. Step 4: Simplify right side
    59,990.60x = 2,743,065,794.73
  5. Step 5: Solve for x
    x = 2,743,065,794.73/59,990.60
  6. Step 6: Final answer
    x = 45,724.93

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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.