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Finding the Fourth Proportional to 48,659.69, 72,983.23 and 15,383.12

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Solution

The fourth proportional to 48,659.69, 72,983.23 and 15,383.12 is: 23,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,659.69 : 72,983.23 = 15,383.12 : x
  2. Step 2: Convert to fraction form
    48,659.69/72,983.23 = 15,383.12/x
  3. Step 3: Cross multiply
    48,659.69x = 72,983.23 × 15,383.12
  4. Step 4: Simplify right side
    48,659.69x = 1,122,709,381.70
  5. Step 5: Solve for x
    x = 1,122,709,381.70/48,659.69
  6. Step 6: Final answer
    x = 23,072.68

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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.