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Finding the Fourth Proportional to 48,630.70, 72,935.52 and 13,091.14

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Solution

The fourth proportional to 48,630.70, 72,935.52 and 13,091.14 is: 19,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,630.70 : 72,935.52 = 13,091.14 : x
  2. Step 2: Convert to fraction form
    48,630.70/72,935.52 = 13,091.14/x
  3. Step 3: Cross multiply
    48,630.70x = 72,935.52 × 13,091.14
  4. Step 4: Simplify right side
    48,630.70x = 954,809,103.29
  5. Step 5: Solve for x
    x = 954,809,103.29/48,630.70
  6. Step 6: Final answer
    x = 19,633.88

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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.