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Finding the Fourth Proportional to 5,393.70, 7,424.60 and 4,650.12

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Solution

The fourth proportional to 5,393.70, 7,424.60 and 4,650.12 is: 6,401.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.70 : 7,424.60 = 4,650.12 : x
  2. Step 2: Convert to fraction form
    5,393.70/7,424.60 = 4,650.12/x
  3. Step 3: Cross multiply
    5,393.70x = 7,424.60 × 4,650.12
  4. Step 4: Simplify right side
    5,393.70x = 34,525,257.70
  5. Step 5: Solve for x
    x = 34,525,257.70/5,393.70
  6. Step 6: Final answer
    x = 6,401.03

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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.