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Finding the Fourth Proportional to 49,447.52, 74,170.52 and 12,007.88

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Solution

The fourth proportional to 49,447.52, 74,170.52 and 12,007.88 is: 18,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,447.52 : 74,170.52 = 12,007.88 : x
  2. Step 2: Convert to fraction form
    49,447.52/74,170.52 = 12,007.88/x
  3. Step 3: Cross multiply
    49,447.52x = 74,170.52 × 12,007.88
  4. Step 4: Simplify right side
    49,447.52x = 890,630,703.70
  5. Step 5: Solve for x
    x = 890,630,703.70/49,447.52
  6. Step 6: Final answer
    x = 18,011.64

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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.