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Finding the Fourth Proportional to 9,762.62, 13,472.37 and 5,286.33

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Solution

The fourth proportional to 9,762.62, 13,472.37 and 5,286.33 is: 7,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,762.62 : 13,472.37 = 5,286.33 : x
  2. Step 2: Convert to fraction form
    9,762.62/13,472.37 = 5,286.33/x
  3. Step 3: Cross multiply
    9,762.62x = 13,472.37 × 5,286.33
  4. Step 4: Simplify right side
    9,762.62x = 71,219,393.70
  5. Step 5: Solve for x
    x = 71,219,393.70/9,762.62
  6. Step 6: Final answer
    x = 7,295.11

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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.