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Finding the Fourth Proportional to 4,981.17, 7,469.60 and 1,693.38

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Solution

The fourth proportional to 4,981.17, 7,469.60 and 1,693.38 is: 2,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.17 : 7,469.60 = 1,693.38 : x
  2. Step 2: Convert to fraction form
    4,981.17/7,469.60 = 1,693.38/x
  3. Step 3: Cross multiply
    4,981.17x = 7,469.60 × 1,693.38
  4. Step 4: Simplify right side
    4,981.17x = 12,648,862.78
  5. Step 5: Solve for x
    x = 12,648,862.78/4,981.17
  6. Step 6: Final answer
    x = 2,539.34

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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.