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Finding the Fourth Proportional to 7,369.79, 10,170.16 and 4,012.64

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Solution

The fourth proportional to 7,369.79, 10,170.16 and 4,012.64 is: 5,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.79 : 10,170.16 = 4,012.64 : x
  2. Step 2: Convert to fraction form
    7,369.79/10,170.16 = 4,012.64/x
  3. Step 3: Cross multiply
    7,369.79x = 10,170.16 × 4,012.64
  4. Step 4: Simplify right side
    7,369.79x = 40,809,168.08
  5. Step 5: Solve for x
    x = 40,809,168.08/7,369.79
  6. Step 6: Final answer
    x = 5,537.36

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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.