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Finding the Fourth Proportional to 28,366.92, 42,550.38 and 7,589.88

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Solution

The fourth proportional to 28,366.92, 42,550.38 and 7,589.88 is: 11,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.92 : 42,550.38 = 7,589.88 : x
  2. Step 2: Convert to fraction form
    28,366.92/42,550.38 = 7,589.88/x
  3. Step 3: Cross multiply
    28,366.92x = 42,550.38 × 7,589.88
  4. Step 4: Simplify right side
    28,366.92x = 322,952,278.15
  5. Step 5: Solve for x
    x = 322,952,278.15/28,366.92
  6. Step 6: Final answer
    x = 11,384.82

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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.