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Finding the Fourth Proportional to 48,788.67, 73,188.99 and 13,728.36

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Solution

The fourth proportional to 48,788.67, 73,188.99 and 13,728.36 is: 20,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,788.67 : 73,188.99 = 13,728.36 : x
  2. Step 2: Convert to fraction form
    48,788.67/73,188.99 = 13,728.36/x
  3. Step 3: Cross multiply
    48,788.67x = 73,188.99 × 13,728.36
  4. Step 4: Simplify right side
    48,788.67x = 1,004,764,802.76
  5. Step 5: Solve for x
    x = 1,004,764,802.76/48,788.67
  6. Step 6: Final answer
    x = 20,594.22

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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.