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Finding the Fourth Proportional to 17,904.84, 26,862.99 and 7,379.79

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Solution

The fourth proportional to 17,904.84, 26,862.99 and 7,379.79 is: 11,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904.84 : 26,862.99 = 7,379.79 : x
  2. Step 2: Convert to fraction form
    17,904.84/26,862.99 = 7,379.79/x
  3. Step 3: Cross multiply
    17,904.84x = 26,862.99 × 7,379.79
  4. Step 4: Simplify right side
    17,904.84x = 198,243,090.66
  5. Step 5: Solve for x
    x = 198,243,090.66/17,904.84
  6. Step 6: Final answer
    x = 11,072.04

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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.