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Finding the Fourth Proportional to 9,951.52, 14,928.80 and 3,378.08

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Solution

The fourth proportional to 9,951.52, 14,928.80 and 3,378.08 is: 5,067.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,951.52 : 14,928.80 = 3,378.08 : x
  2. Step 2: Convert to fraction form
    9,951.52/14,928.80 = 3,378.08/x
  3. Step 3: Cross multiply
    9,951.52x = 14,928.80 × 3,378.08
  4. Step 4: Simplify right side
    9,951.52x = 50,430,680.70
  5. Step 5: Solve for x
    x = 50,430,680.70/9,951.52
  6. Step 6: Final answer
    x = 5,067.64

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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.