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Finding the Fourth Proportional to 7,153.92, 10,733.22 and 3,642.39

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Solution

The fourth proportional to 7,153.92, 10,733.22 and 3,642.39 is: 5,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.92 : 10,733.22 = 3,642.39 : x
  2. Step 2: Convert to fraction form
    7,153.92/10,733.22 = 3,642.39/x
  3. Step 3: Cross multiply
    7,153.92x = 10,733.22 × 3,642.39
  4. Step 4: Simplify right side
    7,153.92x = 39,094,573.20
  5. Step 5: Solve for x
    x = 39,094,573.20/7,153.92
  6. Step 6: Final answer
    x = 5,464.78

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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.