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Finding the Fourth Proportional to 18,054.72, 27,069.28 and 6,952.16

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Solution

The fourth proportional to 18,054.72, 27,069.28 and 6,952.16 is: 10,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,054.72 : 27,069.28 = 6,952.16 : x
  2. Step 2: Convert to fraction form
    18,054.72/27,069.28 = 6,952.16/x
  3. Step 3: Cross multiply
    18,054.72x = 27,069.28 × 6,952.16
  4. Step 4: Simplify right side
    18,054.72x = 188,189,965.64
  5. Step 5: Solve for x
    x = 188,189,965.64/18,054.72
  6. Step 6: Final answer
    x = 10,423.31

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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.