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Finding the Fourth Proportional to 18,252.52, 27,378.99 and 7,164.43

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Solution

The fourth proportional to 18,252.52, 27,378.99 and 7,164.43 is: 10,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.52 : 27,378.99 = 7,164.43 : x
  2. Step 2: Convert to fraction form
    18,252.52/27,378.99 = 7,164.43/x
  3. Step 3: Cross multiply
    18,252.52x = 27,378.99 × 7,164.43
  4. Step 4: Simplify right side
    18,252.52x = 196,154,720.43
  5. Step 5: Solve for x
    x = 196,154,720.43/18,252.52
  6. Step 6: Final answer
    x = 10,746.72

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1.5x scale

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.