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Finding the Fourth Proportional to 4,975.79, 7,450.34 and 2,630.93

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Solution

The fourth proportional to 4,975.79, 7,450.34 and 2,630.93 is: 3,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.79 : 7,450.34 = 2,630.93 : x
  2. Step 2: Convert to fraction form
    4,975.79/7,450.34 = 2,630.93/x
  3. Step 3: Cross multiply
    4,975.79x = 7,450.34 × 2,630.93
  4. Step 4: Simplify right side
    4,975.79x = 19,601,272.61
  5. Step 5: Solve for x
    x = 19,601,272.61/4,975.79
  6. Step 6: Final answer
    x = 3,939.33

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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.