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Finding the Fourth Proportional to 59,378.56, 81,939.20 and 32,520.64

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Solution

The fourth proportional to 59,378.56, 81,939.20 and 32,520.64 is: 44,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,378.56 : 81,939.20 = 32,520.64 : x
  2. Step 2: Convert to fraction form
    59,378.56/81,939.20 = 32,520.64/x
  3. Step 3: Cross multiply
    59,378.56x = 81,939.20 × 32,520.64
  4. Step 4: Simplify right side
    59,378.56x = 2,664,715,225.09
  5. Step 5: Solve for x
    x = 2,664,715,225.09/59,378.56
  6. Step 6: Final answer
    x = 44,876.72

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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.