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Finding the Fourth Proportional to 28,596.83, 42,895.11 and 7,249.55

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Solution

The fourth proportional to 28,596.83, 42,895.11 and 7,249.55 is: 10,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,596.83 : 42,895.11 = 7,249.55 : x
  2. Step 2: Convert to fraction form
    28,596.83/42,895.11 = 7,249.55/x
  3. Step 3: Cross multiply
    28,596.83x = 42,895.11 × 7,249.55
  4. Step 4: Simplify right side
    28,596.83x = 310,970,244.70
  5. Step 5: Solve for x
    x = 310,970,244.70/28,596.83
  6. Step 6: Final answer
    x = 10,874.29

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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.