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Finding the Fourth Proportional to 18,717.57, 25,827.30 and 10,758.30

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Solution

The fourth proportional to 18,717.57, 25,827.30 and 10,758.30 is: 14,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.57 : 25,827.30 = 10,758.30 : x
  2. Step 2: Convert to fraction form
    18,717.57/25,827.30 = 10,758.30/x
  3. Step 3: Cross multiply
    18,717.57x = 25,827.30 × 10,758.30
  4. Step 4: Simplify right side
    18,717.57x = 277,857,841.59
  5. Step 5: Solve for x
    x = 277,857,841.59/18,717.57
  6. Step 6: Final answer
    x = 14,844.76

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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.