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Finding the Fourth Proportional to 27,318.52, 40,979.42 and 8,599.16

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Solution

The fourth proportional to 27,318.52, 40,979.42 and 8,599.16 is: 12,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318.52 : 40,979.42 = 8,599.16 : x
  2. Step 2: Convert to fraction form
    27,318.52/40,979.42 = 8,599.16/x
  3. Step 3: Cross multiply
    27,318.52x = 40,979.42 × 8,599.16
  4. Step 4: Simplify right side
    27,318.52x = 352,388,680.99
  5. Step 5: Solve for x
    x = 352,388,680.99/27,318.52
  6. Step 6: Final answer
    x = 12,899.26

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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.