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Finding the Fourth Proportional to 13,913.52, 19,201.10 and 7,626.28

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Solution

The fourth proportional to 13,913.52, 19,201.10 and 7,626.28 is: 10,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.52 : 19,201.10 = 7,626.28 : x
  2. Step 2: Convert to fraction form
    13,913.52/19,201.10 = 7,626.28/x
  3. Step 3: Cross multiply
    13,913.52x = 19,201.10 × 7,626.28
  4. Step 4: Simplify right side
    13,913.52x = 146,432,964.91
  5. Step 5: Solve for x
    x = 146,432,964.91/13,913.52
  6. Step 6: Final answer
    x = 10,524.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.