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Finding the Fourth Proportional to 11,551.68, 17,334 and 5,713.92

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Solution

The fourth proportional to 11,551.68, 17,334 and 5,713.92 is: 8,574.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.68 : 17,334 = 5,713.92 : x
  2. Step 2: Convert to fraction form
    11,551.68/17,334 = 5,713.92/x
  3. Step 3: Cross multiply
    11,551.68x = 17,334 × 5,713.92
  4. Step 4: Simplify right side
    11,551.68x = 99,045,089.28
  5. Step 5: Solve for x
    x = 99,045,089.28/11,551.68
  6. Step 6: Final answer
    x = 8,574.09

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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.