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Finding the Fourth Proportional to 7,172.98, 10,759.79 and 2,242.72

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Solution

The fourth proportional to 7,172.98, 10,759.79 and 2,242.72 is: 3,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.98 : 10,759.79 = 2,242.72 : x
  2. Step 2: Convert to fraction form
    7,172.98/10,759.79 = 2,242.72/x
  3. Step 3: Cross multiply
    7,172.98x = 10,759.79 × 2,242.72
  4. Step 4: Simplify right side
    7,172.98x = 24,131,131.22
  5. Step 5: Solve for x
    x = 24,131,131.22/7,172.98
  6. Step 6: Final answer
    x = 3,364.17

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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.