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Finding the Fourth Proportional to 11,905.02, 16,429.32 and 6,600.33

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Solution

The fourth proportional to 11,905.02, 16,429.32 and 6,600.33 is: 9,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.02 : 16,429.32 = 6,600.33 : x
  2. Step 2: Convert to fraction form
    11,905.02/16,429.32 = 6,600.33/x
  3. Step 3: Cross multiply
    11,905.02x = 16,429.32 × 6,600.33
  4. Step 4: Simplify right side
    11,905.02x = 108,438,933.68
  5. Step 5: Solve for x
    x = 108,438,933.68/11,905.02
  6. Step 6: Final answer
    x = 9,108.67

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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.