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Finding the Fourth Proportional to 8,608.48, 11,868.30 and 7,733.68

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Solution

The fourth proportional to 8,608.48, 11,868.30 and 7,733.68 is: 10,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.48 : 11,868.30 = 7,733.68 : x
  2. Step 2: Convert to fraction form
    8,608.48/11,868.30 = 7,733.68/x
  3. Step 3: Cross multiply
    8,608.48x = 11,868.30 × 7,733.68
  4. Step 4: Simplify right side
    8,608.48x = 91,785,634.34
  5. Step 5: Solve for x
    x = 91,785,634.34/8,608.48
  6. Step 6: Final answer
    x = 10,662.23

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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.