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Finding the Fourth Proportional to 59,990.63, 82,787.06 and 36,118.31

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Solution

The fourth proportional to 59,990.63, 82,787.06 and 36,118.31 is: 49,843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990.63 : 82,787.06 = 36,118.31 : x
  2. Step 2: Convert to fraction form
    59,990.63/82,787.06 = 36,118.31/x
  3. Step 3: Cross multiply
    59,990.63x = 82,787.06 × 36,118.31
  4. Step 4: Simplify right side
    59,990.63x = 2,990,128,373.43
  5. Step 5: Solve for x
    x = 2,990,128,373.43/59,990.63
  6. Step 6: Final answer
    x = 49,843.26

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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.