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Finding the Fourth Proportional to 17,285.43, 25,904.03 and 13,065.22

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Solution

The fourth proportional to 17,285.43, 25,904.03 and 13,065.22 is: 19,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,285.43 : 25,904.03 = 13,065.22 : x
  2. Step 2: Convert to fraction form
    17,285.43/25,904.03 = 13,065.22/x
  3. Step 3: Cross multiply
    17,285.43x = 25,904.03 × 13,065.22
  4. Step 4: Simplify right side
    17,285.43x = 338,441,850.84
  5. Step 5: Solve for x
    x = 338,441,850.84/17,285.43
  6. Step 6: Final answer
    x = 19,579.60

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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.