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Finding the Fourth Proportional to 18,690.44, 28,035.66 and 17,549.96

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Solution

The fourth proportional to 18,690.44, 28,035.66 and 17,549.96 is: 26,324.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.44 : 28,035.66 = 17,549.96 : x
  2. Step 2: Convert to fraction form
    18,690.44/28,035.66 = 17,549.96/x
  3. Step 3: Cross multiply
    18,690.44x = 28,035.66 × 17,549.96
  4. Step 4: Simplify right side
    18,690.44x = 492,024,711.57
  5. Step 5: Solve for x
    x = 492,024,711.57/18,690.44
  6. Step 6: Final answer
    x = 26,324.94

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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.