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Finding the Fourth Proportional to 8,906.69, 13,360.04 and 3,712.56

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Solution

The fourth proportional to 8,906.69, 13,360.04 and 3,712.56 is: 5,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.69 : 13,360.04 = 3,712.56 : x
  2. Step 2: Convert to fraction form
    8,906.69/13,360.04 = 3,712.56/x
  3. Step 3: Cross multiply
    8,906.69x = 13,360.04 × 3,712.56
  4. Step 4: Simplify right side
    8,906.69x = 49,599,950.10
  5. Step 5: Solve for x
    x = 49,599,950.10/8,906.69
  6. Step 6: Final answer
    x = 5,568.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.