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Finding the Fourth Proportional to 5,753.70, 7,934.27 and 5,418.87

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Solution

The fourth proportional to 5,753.70, 7,934.27 and 5,418.87 is: 7,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.70 : 7,934.27 = 5,418.87 : x
  2. Step 2: Convert to fraction form
    5,753.70/7,934.27 = 5,418.87/x
  3. Step 3: Cross multiply
    5,753.70x = 7,934.27 × 5,418.87
  4. Step 4: Simplify right side
    5,753.70x = 42,994,777.67
  5. Step 5: Solve for x
    x = 42,994,777.67/5,753.70
  6. Step 6: Final answer
    x = 7,472.54

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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.