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Finding the Fourth Proportional to 34,455.88, 51,673.98 and 9,489.64

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Solution

The fourth proportional to 34,455.88, 51,673.98 and 9,489.64 is: 14,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,455.88 : 51,673.98 = 9,489.64 : x
  2. Step 2: Convert to fraction form
    34,455.88/51,673.98 = 9,489.64/x
  3. Step 3: Cross multiply
    34,455.88x = 51,673.98 × 9,489.64
  4. Step 4: Simplify right side
    34,455.88x = 490,367,467.57
  5. Step 5: Solve for x
    x = 490,367,467.57/34,455.88
  6. Step 6: Final answer
    x = 14,231.75

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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.