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Finding the Fourth Proportional to 11,703.64, 17,558.52 and 3,912.52

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Solution

The fourth proportional to 11,703.64, 17,558.52 and 3,912.52 is: 5,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.64 : 17,558.52 = 3,912.52 : x
  2. Step 2: Convert to fraction form
    11,703.64/17,558.52 = 3,912.52/x
  3. Step 3: Cross multiply
    11,703.64x = 17,558.52 × 3,912.52
  4. Step 4: Simplify right side
    11,703.64x = 68,698,060.67
  5. Step 5: Solve for x
    x = 68,698,060.67/11,703.64
  6. Step 6: Final answer
    x = 5,869.80

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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.