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Finding the Fourth Proportional to 18,151.60, 25,048.37 and 10,085.82

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Solution

The fourth proportional to 18,151.60, 25,048.37 and 10,085.82 is: 13,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.60 : 25,048.37 = 10,085.82 : x
  2. Step 2: Convert to fraction form
    18,151.60/25,048.37 = 10,085.82/x
  3. Step 3: Cross multiply
    18,151.60x = 25,048.37 × 10,085.82
  4. Step 4: Simplify right side
    18,151.60x = 252,633,351.11
  5. Step 5: Solve for x
    x = 252,633,351.11/18,151.60
  6. Step 6: Final answer
    x = 13,917.97

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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.