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Finding the Fourth Proportional to 9,474.78, 14,212.26 and 3,630

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Solution

The fourth proportional to 9,474.78, 14,212.26 and 3,630 is: 5,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,474.78 : 14,212.26 = 3,630 : x
  2. Step 2: Convert to fraction form
    9,474.78/14,212.26 = 3,630/x
  3. Step 3: Cross multiply
    9,474.78x = 14,212.26 × 3,630
  4. Step 4: Simplify right side
    9,474.78x = 51,590,503.80
  5. Step 5: Solve for x
    x = 51,590,503.80/9,474.78
  6. Step 6: Final answer
    x = 5,445.03

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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.