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Finding the Fourth Proportional to 48,487.05, 72,728.31 and 16,904.34

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Solution

The fourth proportional to 48,487.05, 72,728.31 and 16,904.34 is: 25,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,487.05 : 72,728.31 = 16,904.34 : x
  2. Step 2: Convert to fraction form
    48,487.05/72,728.31 = 16,904.34/x
  3. Step 3: Cross multiply
    48,487.05x = 72,728.31 × 16,904.34
  4. Step 4: Simplify right side
    48,487.05x = 1,229,424,079.87
  5. Step 5: Solve for x
    x = 1,229,424,079.87/48,487.05
  6. Step 6: Final answer
    x = 25,355.72

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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.