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Finding the Fourth Proportional to 39,278.88, 58,917.53 and 9,696.98

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Solution

The fourth proportional to 39,278.88, 58,917.53 and 9,696.98 is: 14,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.88 : 58,917.53 = 9,696.98 : x
  2. Step 2: Convert to fraction form
    39,278.88/58,917.53 = 9,696.98/x
  3. Step 3: Cross multiply
    39,278.88x = 58,917.53 × 9,696.98
  4. Step 4: Simplify right side
    39,278.88x = 571,321,766.99
  5. Step 5: Solve for x
    x = 571,321,766.99/39,278.88
  6. Step 6: Final answer
    x = 14,545.27

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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.