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Finding the Fourth Proportional to 54,007.42, 80,986.02 and 16,557.88

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Solution

The fourth proportional to 54,007.42, 80,986.02 and 16,557.88 is: 24,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,007.42 : 80,986.02 = 16,557.88 : x
  2. Step 2: Convert to fraction form
    54,007.42/80,986.02 = 16,557.88/x
  3. Step 3: Cross multiply
    54,007.42x = 80,986.02 × 16,557.88
  4. Step 4: Simplify right side
    54,007.42x = 1,340,956,800.84
  5. Step 5: Solve for x
    x = 1,340,956,800.84/54,007.42
  6. Step 6: Final answer
    x = 24,829.12

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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.