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Finding the Fourth Proportional to 9,762.67, 13,472.50 and 5,286.46

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Solution

The fourth proportional to 9,762.67, 13,472.50 and 5,286.46 is: 7,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,762.67 : 13,472.50 = 5,286.46 : x
  2. Step 2: Convert to fraction form
    9,762.67/13,472.50 = 5,286.46/x
  3. Step 3: Cross multiply
    9,762.67x = 13,472.50 × 5,286.46
  4. Step 4: Simplify right side
    9,762.67x = 71,221,785.45
  5. Step 5: Solve for x
    x = 71,221,785.45/9,762.67
  6. Step 6: Final answer
    x = 7,295.32

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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.