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Finding the Fourth Proportional to 48,863.66, 73,287.90 and 18,873.59

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Solution

The fourth proportional to 48,863.66, 73,287.90 and 18,873.59 is: 28,307.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,863.66 : 73,287.90 = 18,873.59 : x
  2. Step 2: Convert to fraction form
    48,863.66/73,287.90 = 18,873.59/x
  3. Step 3: Cross multiply
    48,863.66x = 73,287.90 × 18,873.59
  4. Step 4: Simplify right side
    48,863.66x = 1,383,205,410.12
  5. Step 5: Solve for x
    x = 1,383,205,410.12/48,863.66
  6. Step 6: Final answer
    x = 28,307.45

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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.