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Finding the Fourth Proportional to 7,190.32, 9,922.54 and 4,046.52

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Solution

The fourth proportional to 7,190.32, 9,922.54 and 4,046.52 is: 5,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.32 : 9,922.54 = 4,046.52 : x
  2. Step 2: Convert to fraction form
    7,190.32/9,922.54 = 4,046.52/x
  3. Step 3: Cross multiply
    7,190.32x = 9,922.54 × 4,046.52
  4. Step 4: Simplify right side
    7,190.32x = 40,151,756.56
  5. Step 5: Solve for x
    x = 40,151,756.56/7,190.32
  6. Step 6: Final answer
    x = 5,584.14

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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.