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Finding the Fourth Proportional to 17,145.99, 25,705.14 and 15,762.03

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Solution

The fourth proportional to 17,145.99, 25,705.14 and 15,762.03 is: 23,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.99 : 25,705.14 = 15,762.03 : x
  2. Step 2: Convert to fraction form
    17,145.99/25,705.14 = 15,762.03/x
  3. Step 3: Cross multiply
    17,145.99x = 25,705.14 × 15,762.03
  4. Step 4: Simplify right side
    17,145.99x = 405,165,059.31
  5. Step 5: Solve for x
    x = 405,165,059.31/17,145.99
  6. Step 6: Final answer
    x = 23,630.31

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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.