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Finding the Fourth Proportional to 18,691.08, 25,797.70 and 10,737.69

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Solution

The fourth proportional to 18,691.08, 25,797.70 and 10,737.69 is: 14,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691.08 : 25,797.70 = 10,737.69 : x
  2. Step 2: Convert to fraction form
    18,691.08/25,797.70 = 10,737.69/x
  3. Step 3: Cross multiply
    18,691.08x = 25,797.70 × 10,737.69
  4. Step 4: Simplify right side
    18,691.08x = 277,007,706.71
  5. Step 5: Solve for x
    x = 277,007,706.71/18,691.08
  6. Step 6: Final answer
    x = 14,820.31

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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.