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Finding the Fourth Proportional to 18,324.87, 25,288.46 and 9,941.43

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Solution

The fourth proportional to 18,324.87, 25,288.46 and 9,941.43 is: 13,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.87 : 25,288.46 = 9,941.43 : x
  2. Step 2: Convert to fraction form
    18,324.87/25,288.46 = 9,941.43/x
  3. Step 3: Cross multiply
    18,324.87x = 25,288.46 × 9,941.43
  4. Step 4: Simplify right side
    18,324.87x = 251,403,454.90
  5. Step 5: Solve for x
    x = 251,403,454.90/18,324.87
  6. Step 6: Final answer
    x = 13,719.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.