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Finding the Fourth Proportional to 7,178.22, 10,764.51 and 3,020.22

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Solution

The fourth proportional to 7,178.22, 10,764.51 and 3,020.22 is: 4,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.22 : 10,764.51 = 3,020.22 : x
  2. Step 2: Convert to fraction form
    7,178.22/10,764.51 = 3,020.22/x
  3. Step 3: Cross multiply
    7,178.22x = 10,764.51 × 3,020.22
  4. Step 4: Simplify right side
    7,178.22x = 32,511,188.39
  5. Step 5: Solve for x
    x = 32,511,188.39/7,178.22
  6. Step 6: Final answer
    x = 4,529.14

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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.