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Finding the Fourth Proportional to 34,989.87, 52,484.61 and 8,694.60

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Solution

The fourth proportional to 34,989.87, 52,484.61 and 8,694.60 is: 13,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,989.87 : 52,484.61 = 8,694.60 : x
  2. Step 2: Convert to fraction form
    34,989.87/52,484.61 = 8,694.60/x
  3. Step 3: Cross multiply
    34,989.87x = 52,484.61 × 8,694.60
  4. Step 4: Simplify right side
    34,989.87x = 456,332,690.11
  5. Step 5: Solve for x
    x = 456,332,690.11/34,989.87
  6. Step 6: Final answer
    x = 13,041.85

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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.