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Finding the Fourth Proportional to 11,579.96, 17,368.79 and 3,259.79

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Solution

The fourth proportional to 11,579.96, 17,368.79 and 3,259.79 is: 4,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.96 : 17,368.79 = 3,259.79 : x
  2. Step 2: Convert to fraction form
    11,579.96/17,368.79 = 3,259.79/x
  3. Step 3: Cross multiply
    11,579.96x = 17,368.79 × 3,259.79
  4. Step 4: Simplify right side
    11,579.96x = 56,618,607.95
  5. Step 5: Solve for x
    x = 56,618,607.95/11,579.96
  6. Step 6: Final answer
    x = 4,889.36

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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.