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Finding the Fourth Proportional to 17,763.84, 26,645.84 and 4,615.28

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Solution

The fourth proportional to 17,763.84, 26,645.84 and 4,615.28 is: 6,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,763.84 : 26,645.84 = 4,615.28 : x
  2. Step 2: Convert to fraction form
    17,763.84/26,645.84 = 4,615.28/x
  3. Step 3: Cross multiply
    17,763.84x = 26,645.84 × 4,615.28
  4. Step 4: Simplify right side
    17,763.84x = 122,978,012.44
  5. Step 5: Solve for x
    x = 122,978,012.44/17,763.84
  6. Step 6: Final answer
    x = 6,922.94

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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.