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Finding the Fourth Proportional to 48,408.99, 72,617.97 and 18,829.07

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Solution

The fourth proportional to 48,408.99, 72,617.97 and 18,829.07 is: 28,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.99 : 72,617.97 = 18,829.07 : x
  2. Step 2: Convert to fraction form
    48,408.99/72,617.97 = 18,829.07/x
  3. Step 3: Cross multiply
    48,408.99x = 72,617.97 × 18,829.07
  4. Step 4: Simplify right side
    48,408.99x = 1,367,328,840.39
  5. Step 5: Solve for x
    x = 1,367,328,840.39/48,408.99
  6. Step 6: Final answer
    x = 28,245.35

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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.