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Finding the Fourth Proportional to 9,003.65, 13,505.37 and 3,080.48

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Solution

The fourth proportional to 9,003.65, 13,505.37 and 3,080.48 is: 4,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,003.65 : 13,505.37 = 3,080.48 : x
  2. Step 2: Convert to fraction form
    9,003.65/13,505.37 = 3,080.48/x
  3. Step 3: Cross multiply
    9,003.65x = 13,505.37 × 3,080.48
  4. Step 4: Simplify right side
    9,003.65x = 41,603,022.18
  5. Step 5: Solve for x
    x = 41,603,022.18/9,003.65
  6. Step 6: Final answer
    x = 4,620.68

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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.