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Finding the Fourth Proportional to 34,911, 48,172.32 and 21,484.44

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Solution

The fourth proportional to 34,911, 48,172.32 and 21,484.44 is: 29,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,911 : 48,172.32 = 21,484.44 : x
  2. Step 2: Convert to fraction form
    34,911/48,172.32 = 21,484.44/x
  3. Step 3: Cross multiply
    34,911x = 48,172.32 × 21,484.44
  4. Step 4: Simplify right side
    34,911x = 1,034,955,318.70
  5. Step 5: Solve for x
    x = 1,034,955,318.70/34,911
  6. Step 6: Final answer
    x = 29,645.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.