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Finding the Fourth Proportional to 18,344.56, 27,511.58 and 7,097.28

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Solution

The fourth proportional to 18,344.56, 27,511.58 and 7,097.28 is: 10,643.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.56 : 27,511.58 = 7,097.28 : x
  2. Step 2: Convert to fraction form
    18,344.56/27,511.58 = 7,097.28/x
  3. Step 3: Cross multiply
    18,344.56x = 27,511.58 × 7,097.28
  4. Step 4: Simplify right side
    18,344.56x = 195,257,386.50
  5. Step 5: Solve for x
    x = 195,257,386.50/18,344.56
  6. Step 6: Final answer
    x = 10,643.88

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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.