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Finding the Fourth Proportional to 48,659.52, 72,989.12 and 11,723.52

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Solution

The fourth proportional to 48,659.52, 72,989.12 and 11,723.52 is: 17,585.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,659.52 : 72,989.12 = 11,723.52 : x
  2. Step 2: Convert to fraction form
    48,659.52/72,989.12 = 11,723.52/x
  3. Step 3: Cross multiply
    48,659.52x = 72,989.12 × 11,723.52
  4. Step 4: Simplify right side
    48,659.52x = 855,689,408.10
  5. Step 5: Solve for x
    x = 855,689,408.10/48,659.52
  6. Step 6: Final answer
    x = 17,585.24

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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.