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Finding the Fourth Proportional to 48,910.60, 73,390.20 and 19,329.40

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Solution

The fourth proportional to 48,910.60, 73,390.20 and 19,329.40 is: 29,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,910.60 : 73,390.20 = 19,329.40 : x
  2. Step 2: Convert to fraction form
    48,910.60/73,390.20 = 19,329.40/x
  3. Step 3: Cross multiply
    48,910.60x = 73,390.20 × 19,329.40
  4. Step 4: Simplify right side
    48,910.60x = 1,418,588,531.88
  5. Step 5: Solve for x
    x = 1,418,588,531.88/48,910.60
  6. Step 6: Final answer
    x = 29,003.70

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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.