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Finding the Fourth Proportional to 29,920.04, 44,879.92 and 7,731.53

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Solution

The fourth proportional to 29,920.04, 44,879.92 and 7,731.53 is: 11,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,920.04 : 44,879.92 = 7,731.53 : x
  2. Step 2: Convert to fraction form
    29,920.04/44,879.92 = 7,731.53/x
  3. Step 3: Cross multiply
    29,920.04x = 44,879.92 × 7,731.53
  4. Step 4: Simplify right side
    29,920.04x = 346,990,401.44
  5. Step 5: Solve for x
    x = 346,990,401.44/29,920.04
  6. Step 6: Final answer
    x = 11,597.26

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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.