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Finding the Fourth Proportional to 4,943.75, 7,415.08 and 1,245.98

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Solution

The fourth proportional to 4,943.75, 7,415.08 and 1,245.98 is: 1,868.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.75 : 7,415.08 = 1,245.98 : x
  2. Step 2: Convert to fraction form
    4,943.75/7,415.08 = 1,245.98/x
  3. Step 3: Cross multiply
    4,943.75x = 7,415.08 × 1,245.98
  4. Step 4: Simplify right side
    4,943.75x = 9,239,056.80
  5. Step 5: Solve for x
    x = 9,239,056.80/4,943.75
  6. Step 6: Final answer
    x = 1,868.83

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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.