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Finding the Fourth Proportional to 35,644.62, 53,431.65 and 16,891.50

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Solution

The fourth proportional to 35,644.62, 53,431.65 and 16,891.50 is: 25,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,644.62 : 53,431.65 = 16,891.50 : x
  2. Step 2: Convert to fraction form
    35,644.62/53,431.65 = 16,891.50/x
  3. Step 3: Cross multiply
    35,644.62x = 53,431.65 × 16,891.50
  4. Step 4: Simplify right side
    35,644.62x = 902,540,715.98
  5. Step 5: Solve for x
    x = 902,540,715.98/35,644.62
  6. Step 6: Final answer
    x = 25,320.53

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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.