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Finding the Fourth Proportional to 19,092.64, 28,640.82 and 7,088.02

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Solution

The fourth proportional to 19,092.64, 28,640.82 and 7,088.02 is: 10,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,092.64 : 28,640.82 = 7,088.02 : x
  2. Step 2: Convert to fraction form
    19,092.64/28,640.82 = 7,088.02/x
  3. Step 3: Cross multiply
    19,092.64x = 28,640.82 × 7,088.02
  4. Step 4: Simplify right side
    19,092.64x = 203,006,704.98
  5. Step 5: Solve for x
    x = 203,006,704.98/19,092.64
  6. Step 6: Final answer
    x = 10,632.72

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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.