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Finding the Fourth Proportional to 17,129.35, 25,693.66 and 7,895.35

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Solution

The fourth proportional to 17,129.35, 25,693.66 and 7,895.35 is: 11,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.35 : 25,693.66 = 7,895.35 : x
  2. Step 2: Convert to fraction form
    17,129.35/25,693.66 = 7,895.35/x
  3. Step 3: Cross multiply
    17,129.35x = 25,693.66 × 7,895.35
  4. Step 4: Simplify right side
    17,129.35x = 202,860,438.48
  5. Step 5: Solve for x
    x = 202,860,438.48/17,129.35
  6. Step 6: Final answer
    x = 11,842.86

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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.