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Finding the Fourth Proportional to 39,103, 58,664.28 and 11,401

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Solution

The fourth proportional to 39,103, 58,664.28 and 11,401 is: 17,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103 : 58,664.28 = 11,401 : x
  2. Step 2: Convert to fraction form
    39,103/58,664.28 = 11,401/x
  3. Step 3: Cross multiply
    39,103x = 58,664.28 × 11,401
  4. Step 4: Simplify right side
    39,103x = 668,831,456.28
  5. Step 5: Solve for x
    x = 668,831,456.28/39,103
  6. Step 6: Final answer
    x = 17,104.35

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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.