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Finding the Fourth Proportional to 4,983.87, 7,476.12 and 2,790.93

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Solution

The fourth proportional to 4,983.87, 7,476.12 and 2,790.93 is: 4,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.87 : 7,476.12 = 2,790.93 : x
  2. Step 2: Convert to fraction form
    4,983.87/7,476.12 = 2,790.93/x
  3. Step 3: Cross multiply
    4,983.87x = 7,476.12 × 2,790.93
  4. Step 4: Simplify right side
    4,983.87x = 20,865,327.59
  5. Step 5: Solve for x
    x = 20,865,327.59/4,983.87
  6. Step 6: Final answer
    x = 4,186.57

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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.