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Finding the Fourth Proportional to 18,662.88, 25,803.57 and 17,836.68

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Solution

The fourth proportional to 18,662.88, 25,803.57 and 17,836.68 is: 24,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.88 : 25,803.57 = 17,836.68 : x
  2. Step 2: Convert to fraction form
    18,662.88/25,803.57 = 17,836.68/x
  3. Step 3: Cross multiply
    18,662.88x = 25,803.57 × 17,836.68
  4. Step 4: Simplify right side
    18,662.88x = 460,250,020.95
  5. Step 5: Solve for x
    x = 460,250,020.95/18,662.88
  6. Step 6: Final answer
    x = 24,661.25

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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.