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Finding the Fourth Proportional to 19,658.27, 29,344.90 and 18,194.87

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Solution

The fourth proportional to 19,658.27, 29,344.90 and 18,194.87 is: 27,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.27 : 29,344.90 = 18,194.87 : x
  2. Step 2: Convert to fraction form
    19,658.27/29,344.90 = 18,194.87/x
  3. Step 3: Cross multiply
    19,658.27x = 29,344.90 × 18,194.87
  4. Step 4: Simplify right side
    19,658.27x = 533,926,702.65
  5. Step 5: Solve for x
    x = 533,926,702.65/19,658.27
  6. Step 6: Final answer
    x = 27,160.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.