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Finding the Fourth Proportional to 18,155.52, 27,232.50 and 5,007.51

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Solution

The fourth proportional to 18,155.52, 27,232.50 and 5,007.51 is: 7,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.52 : 27,232.50 = 5,007.51 : x
  2. Step 2: Convert to fraction form
    18,155.52/27,232.50 = 5,007.51/x
  3. Step 3: Cross multiply
    18,155.52x = 27,232.50 × 5,007.51
  4. Step 4: Simplify right side
    18,155.52x = 136,367,016.08
  5. Step 5: Solve for x
    x = 136,367,016.08/18,155.52
  6. Step 6: Final answer
    x = 7,511.05

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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.