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Finding the Fourth Proportional to 5,305.84, 7,942.32 and 4,518.52

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Solution

The fourth proportional to 5,305.84, 7,942.32 and 4,518.52 is: 6,763.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.84 : 7,942.32 = 4,518.52 : x
  2. Step 2: Convert to fraction form
    5,305.84/7,942.32 = 4,518.52/x
  3. Step 3: Cross multiply
    5,305.84x = 7,942.32 × 4,518.52
  4. Step 4: Simplify right side
    5,305.84x = 35,887,531.77
  5. Step 5: Solve for x
    x = 35,887,531.77/5,305.84
  6. Step 6: Final answer
    x = 6,763.78

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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.