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Finding the Fourth Proportional to 48,855.20, 73,282.80 and 17,712.80

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Solution

The fourth proportional to 48,855.20, 73,282.80 and 17,712.80 is: 26,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,855.20 : 73,282.80 = 17,712.80 : x
  2. Step 2: Convert to fraction form
    48,855.20/73,282.80 = 17,712.80/x
  3. Step 3: Cross multiply
    48,855.20x = 73,282.80 × 17,712.80
  4. Step 4: Simplify right side
    48,855.20x = 1,298,043,579.84
  5. Step 5: Solve for x
    x = 1,298,043,579.84/48,855.20
  6. Step 6: Final answer
    x = 26,569.20

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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.