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Finding the Fourth Proportional to 18,794.52, 25,877.34 and 15,269.40

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Solution

The fourth proportional to 18,794.52, 25,877.34 and 15,269.40 is: 21,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.52 : 25,877.34 = 15,269.40 : x
  2. Step 2: Convert to fraction form
    18,794.52/25,877.34 = 15,269.40/x
  3. Step 3: Cross multiply
    18,794.52x = 25,877.34 × 15,269.40
  4. Step 4: Simplify right side
    18,794.52x = 395,131,455.40
  5. Step 5: Solve for x
    x = 395,131,455.40/18,794.52
  6. Step 6: Final answer
    x = 21,023.76

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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.