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Finding the Fourth Proportional to 48,689.57, 73,027.04 and 15,405.31

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Solution

The fourth proportional to 48,689.57, 73,027.04 and 15,405.31 is: 23,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,689.57 : 73,027.04 = 15,405.31 : x
  2. Step 2: Convert to fraction form
    48,689.57/73,027.04 = 15,405.31/x
  3. Step 3: Cross multiply
    48,689.57x = 73,027.04 × 15,405.31
  4. Step 4: Simplify right side
    48,689.57x = 1,125,004,203.84
  5. Step 5: Solve for x
    x = 1,125,004,203.84/48,689.57
  6. Step 6: Final answer
    x = 23,105.65

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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.