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Finding the Fourth Proportional to 34,891.87, 52,329.94 and 9,931.37

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Solution

The fourth proportional to 34,891.87, 52,329.94 and 9,931.37 is: 14,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,891.87 : 52,329.94 = 9,931.37 : x
  2. Step 2: Convert to fraction form
    34,891.87/52,329.94 = 9,931.37/x
  3. Step 3: Cross multiply
    34,891.87x = 52,329.94 × 9,931.37
  4. Step 4: Simplify right side
    34,891.87x = 519,707,765.60
  5. Step 5: Solve for x
    x = 519,707,765.60/34,891.87
  6. Step 6: Final answer
    x = 14,894.81

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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.