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Finding the Fourth Proportional to 7,175.62, 9,903.12 and 4,344.56

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Solution

The fourth proportional to 7,175.62, 9,903.12 and 4,344.56 is: 5,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.62 : 9,903.12 = 4,344.56 : x
  2. Step 2: Convert to fraction form
    7,175.62/9,903.12 = 4,344.56/x
  3. Step 3: Cross multiply
    7,175.62x = 9,903.12 × 4,344.56
  4. Step 4: Simplify right side
    7,175.62x = 43,024,699.03
  5. Step 5: Solve for x
    x = 43,024,699.03/7,175.62
  6. Step 6: Final answer
    x = 5,995.96

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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.