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Finding the Fourth Proportional to 18,844.17, 28,266.44 and 4,993.17

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Solution

The fourth proportional to 18,844.17, 28,266.44 and 4,993.17 is: 7,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.17 : 28,266.44 = 4,993.17 : x
  2. Step 2: Convert to fraction form
    18,844.17/28,266.44 = 4,993.17/x
  3. Step 3: Cross multiply
    18,844.17x = 28,266.44 × 4,993.17
  4. Step 4: Simplify right side
    18,844.17x = 141,139,115.25
  5. Step 5: Solve for x
    x = 141,139,115.25/18,844.17
  6. Step 6: Final answer
    x = 7,489.80

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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.