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Finding the Fourth Proportional to 75,813.28, 104,589.84 and 45,590.56

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Solution

The fourth proportional to 75,813.28, 104,589.84 and 45,590.56 is: 62,895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,813.28 : 104,589.84 = 45,590.56 : x
  2. Step 2: Convert to fraction form
    75,813.28/104,589.84 = 45,590.56/x
  3. Step 3: Cross multiply
    75,813.28x = 104,589.84 × 45,590.56
  4. Step 4: Simplify right side
    75,813.28x = 4,768,309,375.91
  5. Step 5: Solve for x
    x = 4,768,309,375.91/75,813.28
  6. Step 6: Final answer
    x = 62,895.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.