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Finding the Fourth Proportional to 18,949.27, 28,423.97 and 5,801.58

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Solution

The fourth proportional to 18,949.27, 28,423.97 and 5,801.58 is: 8,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.27 : 28,423.97 = 5,801.58 : x
  2. Step 2: Convert to fraction form
    18,949.27/28,423.97 = 5,801.58/x
  3. Step 3: Cross multiply
    18,949.27x = 28,423.97 × 5,801.58
  4. Step 4: Simplify right side
    18,949.27x = 164,904,035.21
  5. Step 5: Solve for x
    x = 164,904,035.21/18,949.27
  6. Step 6: Final answer
    x = 8,702.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.