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Finding the Fourth Proportional to 48,141.63, 72,212.22 and 13,081.32

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Solution

The fourth proportional to 48,141.63, 72,212.22 and 13,081.32 is: 19,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,141.63 : 72,212.22 = 13,081.32 : x
  2. Step 2: Convert to fraction form
    48,141.63/72,212.22 = 13,081.32/x
  3. Step 3: Cross multiply
    48,141.63x = 72,212.22 × 13,081.32
  4. Step 4: Simplify right side
    48,141.63x = 944,631,157.73
  5. Step 5: Solve for x
    x = 944,631,157.73/48,141.63
  6. Step 6: Final answer
    x = 19,621.92

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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.