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Finding the Fourth Proportional to 11,713.51, 17,558.03 and 5,134.15

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Solution

The fourth proportional to 11,713.51, 17,558.03 and 5,134.15 is: 7,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.51 : 17,558.03 = 5,134.15 : x
  2. Step 2: Convert to fraction form
    11,713.51/17,558.03 = 5,134.15/x
  3. Step 3: Cross multiply
    11,713.51x = 17,558.03 × 5,134.15
  4. Step 4: Simplify right side
    11,713.51x = 90,145,534.05
  5. Step 5: Solve for x
    x = 90,145,534.05/11,713.51
  6. Step 6: Final answer
    x = 7,695.86

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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.