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Finding the Fourth Proportional to 30,396.87, 45,599.88 and 10,671.96

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Solution

The fourth proportional to 30,396.87, 45,599.88 and 10,671.96 is: 16,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.87 : 45,599.88 = 10,671.96 : x
  2. Step 2: Convert to fraction form
    30,396.87/45,599.88 = 10,671.96/x
  3. Step 3: Cross multiply
    30,396.87x = 45,599.88 × 10,671.96
  4. Step 4: Simplify right side
    30,396.87x = 486,640,095.36
  5. Step 5: Solve for x
    x = 486,640,095.36/30,396.87
  6. Step 6: Final answer
    x = 16,009.55

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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.