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Finding the Fourth Proportional to 28,553.65, 42,834.64 and 8,833.75

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Solution

The fourth proportional to 28,553.65, 42,834.64 and 8,833.75 is: 13,251.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.65 : 42,834.64 = 8,833.75 : x
  2. Step 2: Convert to fraction form
    28,553.65/42,834.64 = 8,833.75/x
  3. Step 3: Cross multiply
    28,553.65x = 42,834.64 × 8,833.75
  4. Step 4: Simplify right side
    28,553.65x = 378,390,290.99
  5. Step 5: Solve for x
    x = 378,390,290.99/28,553.65
  6. Step 6: Final answer
    x = 13,251.91

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1.5x scale

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.