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Finding the Fourth Proportional to 7,369.89, 10,170.12 and 4,012.71

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Solution

The fourth proportional to 7,369.89, 10,170.12 and 4,012.71 is: 5,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.89 : 10,170.12 = 4,012.71 : x
  2. Step 2: Convert to fraction form
    7,369.89/10,170.12 = 4,012.71/x
  3. Step 3: Cross multiply
    7,369.89x = 10,170.12 × 4,012.71
  4. Step 4: Simplify right side
    7,369.89x = 40,809,795.41
  5. Step 5: Solve for x
    x = 40,809,795.41/7,369.89
  6. Step 6: Final answer
    x = 5,537.37

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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.