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Finding the Fourth Proportional to 18,578.52, 25,623.46 and 14,992.52

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Solution

The fourth proportional to 18,578.52, 25,623.46 and 14,992.52 is: 20,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.52 : 25,623.46 = 14,992.52 : x
  2. Step 2: Convert to fraction form
    18,578.52/25,623.46 = 14,992.52/x
  3. Step 3: Cross multiply
    18,578.52x = 25,623.46 × 14,992.52
  4. Step 4: Simplify right side
    18,578.52x = 384,160,236.52
  5. Step 5: Solve for x
    x = 384,160,236.52/18,578.52
  6. Step 6: Final answer
    x = 20,677.66

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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.