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Finding the Fourth Proportional to 59,621.79, 89,474.60 and 28,033.30

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Solution

The fourth proportional to 59,621.79, 89,474.60 and 28,033.30 is: 42,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,621.79 : 89,474.60 = 28,033.30 : x
  2. Step 2: Convert to fraction form
    59,621.79/89,474.60 = 28,033.30/x
  3. Step 3: Cross multiply
    59,621.79x = 89,474.60 × 28,033.30
  4. Step 4: Simplify right side
    59,621.79x = 2,508,268,304.18
  5. Step 5: Solve for x
    x = 2,508,268,304.18/59,621.79
  6. Step 6: Final answer
    x = 42,069.66

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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.