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Finding the Fourth Proportional to 9,761.74, 13,473.65 and 8,765.28

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Solution

The fourth proportional to 9,761.74, 13,473.65 and 8,765.28 is: 12,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,761.74 : 13,473.65 = 8,765.28 : x
  2. Step 2: Convert to fraction form
    9,761.74/13,473.65 = 8,765.28/x
  3. Step 3: Cross multiply
    9,761.74x = 13,473.65 × 8,765.28
  4. Step 4: Simplify right side
    9,761.74x = 118,100,336.79
  5. Step 5: Solve for x
    x = 118,100,336.79/9,761.74
  6. Step 6: Final answer
    x = 12,098.29

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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.