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Finding the Fourth Proportional to 7,316.52, 10,974.80 and 3,212.52

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Solution

The fourth proportional to 7,316.52, 10,974.80 and 3,212.52 is: 4,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.52 : 10,974.80 = 3,212.52 : x
  2. Step 2: Convert to fraction form
    7,316.52/10,974.80 = 3,212.52/x
  3. Step 3: Cross multiply
    7,316.52x = 10,974.80 × 3,212.52
  4. Step 4: Simplify right side
    7,316.52x = 35,256,764.50
  5. Step 5: Solve for x
    x = 35,256,764.50/7,316.52
  6. Step 6: Final answer
    x = 4,818.79

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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.