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Finding the Fourth Proportional to 17,920.98, 26,881.44 and 4,773.39

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Solution

The fourth proportional to 17,920.98, 26,881.44 and 4,773.39 is: 7,160.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.98 : 26,881.44 = 4,773.39 : x
  2. Step 2: Convert to fraction form
    17,920.98/26,881.44 = 4,773.39/x
  3. Step 3: Cross multiply
    17,920.98x = 26,881.44 × 4,773.39
  4. Step 4: Simplify right side
    17,920.98x = 128,315,596.88
  5. Step 5: Solve for x
    x = 128,315,596.88/17,920.98
  6. Step 6: Final answer
    x = 7,160.08

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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.