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Finding the Fourth Proportional to 7,190.04, 9,922.16 and 4,003.25

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Solution

The fourth proportional to 7,190.04, 9,922.16 and 4,003.25 is: 5,524.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.04 : 9,922.16 = 4,003.25 : x
  2. Step 2: Convert to fraction form
    7,190.04/9,922.16 = 4,003.25/x
  3. Step 3: Cross multiply
    7,190.04x = 9,922.16 × 4,003.25
  4. Step 4: Simplify right side
    7,190.04x = 39,720,887.02
  5. Step 5: Solve for x
    x = 39,720,887.02/7,190.04
  6. Step 6: Final answer
    x = 5,524.43

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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.