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Finding the Fourth Proportional to 28,553.91, 42,834.98 and 8,834.01

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Solution

The fourth proportional to 28,553.91, 42,834.98 and 8,834.01 is: 13,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.91 : 42,834.98 = 8,834.01 : x
  2. Step 2: Convert to fraction form
    28,553.91/42,834.98 = 8,834.01/x
  3. Step 3: Cross multiply
    28,553.91x = 42,834.98 × 8,834.01
  4. Step 4: Simplify right side
    28,553.91x = 378,404,641.67
  5. Step 5: Solve for x
    x = 378,404,641.67/28,553.91
  6. Step 6: Final answer
    x = 13,252.29

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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.