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Finding the Fourth Proportional to 7,172.99, 10,759.43 and 4,249.19

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Solution

The fourth proportional to 7,172.99, 10,759.43 and 4,249.19 is: 6,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.99 : 10,759.43 = 4,249.19 : x
  2. Step 2: Convert to fraction form
    7,172.99/10,759.43 = 4,249.19/x
  3. Step 3: Cross multiply
    7,172.99x = 10,759.43 × 4,249.19
  4. Step 4: Simplify right side
    7,172.99x = 45,718,841.12
  5. Step 5: Solve for x
    x = 45,718,841.12/7,172.99
  6. Step 6: Final answer
    x = 6,373.75

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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.