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Finding the Fourth Proportional to 48,580.59, 72,872.81 and 13,523.31

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Solution

The fourth proportional to 48,580.59, 72,872.81 and 13,523.31 is: 20,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,580.59 : 72,872.81 = 13,523.31 : x
  2. Step 2: Convert to fraction form
    48,580.59/72,872.81 = 13,523.31/x
  3. Step 3: Cross multiply
    48,580.59x = 72,872.81 × 13,523.31
  4. Step 4: Simplify right side
    48,580.59x = 985,481,532.58
  5. Step 5: Solve for x
    x = 985,481,532.58/48,580.59
  6. Step 6: Final answer
    x = 20,285.50

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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.