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Finding the Fourth Proportional to 18,393.26, 27,583.40 and 5,909.07

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Solution

The fourth proportional to 18,393.26, 27,583.40 and 5,909.07 is: 8,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.26 : 27,583.40 = 5,909.07 : x
  2. Step 2: Convert to fraction form
    18,393.26/27,583.40 = 5,909.07/x
  3. Step 3: Cross multiply
    18,393.26x = 27,583.40 × 5,909.07
  4. Step 4: Simplify right side
    18,393.26x = 162,992,256.21
  5. Step 5: Solve for x
    x = 162,992,256.21/18,393.26
  6. Step 6: Final answer
    x = 8,861.52

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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.