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Finding the Fourth Proportional to 7,190.17, 9,922.50 and 4,003.63

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Solution

The fourth proportional to 7,190.17, 9,922.50 and 4,003.63 is: 5,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.17 : 9,922.50 = 4,003.63 : x
  2. Step 2: Convert to fraction form
    7,190.17/9,922.50 = 4,003.63/x
  3. Step 3: Cross multiply
    7,190.17x = 9,922.50 × 4,003.63
  4. Step 4: Simplify right side
    7,190.17x = 39,725,993.87
  5. Step 5: Solve for x
    x = 39,725,993.87/7,190.17
  6. Step 6: Final answer
    x = 5,525.04

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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.