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Finding the Fourth Proportional to 8,906.76, 13,358.10 and 3,360.68

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Solution

The fourth proportional to 8,906.76, 13,358.10 and 3,360.68 is: 5,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.76 : 13,358.10 = 3,360.68 : x
  2. Step 2: Convert to fraction form
    8,906.76/13,358.10 = 3,360.68/x
  3. Step 3: Cross multiply
    8,906.76x = 13,358.10 × 3,360.68
  4. Step 4: Simplify right side
    8,906.76x = 44,892,299.51
  5. Step 5: Solve for x
    x = 44,892,299.51/8,906.76
  6. Step 6: Final answer
    x = 5,040.25

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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.