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Finding the Fourth Proportional to 7,898.40, 11,837.52 and 2,963.52

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Solution

The fourth proportional to 7,898.40, 11,837.52 and 2,963.52 is: 4,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.40 : 11,837.52 = 2,963.52 : x
  2. Step 2: Convert to fraction form
    7,898.40/11,837.52 = 2,963.52/x
  3. Step 3: Cross multiply
    7,898.40x = 11,837.52 × 2,963.52
  4. Step 4: Simplify right side
    7,898.40x = 35,080,727.27
  5. Step 5: Solve for x
    x = 35,080,727.27/7,898.40
  6. Step 6: Final answer
    x = 4,441.50

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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.