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Finding the Fourth Proportional to 9,782.37, 14,674.91 and 3,209.22

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Solution

The fourth proportional to 9,782.37, 14,674.91 and 3,209.22 is: 4,814.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.37 : 14,674.91 = 3,209.22 : x
  2. Step 2: Convert to fraction form
    9,782.37/14,674.91 = 3,209.22/x
  3. Step 3: Cross multiply
    9,782.37x = 14,674.91 × 3,209.22
  4. Step 4: Simplify right side
    9,782.37x = 47,094,998.62
  5. Step 5: Solve for x
    x = 47,094,998.62/9,782.37
  6. Step 6: Final answer
    x = 4,814.27

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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.