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Finding the Fourth Proportional to 7,325.74, 10,109.49 and 3,968.54

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Solution

The fourth proportional to 7,325.74, 10,109.49 and 3,968.54 is: 5,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.74 : 10,109.49 = 3,968.54 : x
  2. Step 2: Convert to fraction form
    7,325.74/10,109.49 = 3,968.54/x
  3. Step 3: Cross multiply
    7,325.74x = 10,109.49 × 3,968.54
  4. Step 4: Simplify right side
    7,325.74x = 40,119,915.44
  5. Step 5: Solve for x
    x = 40,119,915.44/7,325.74
  6. Step 6: Final answer
    x = 5,476.57

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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.