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Finding the Fourth Proportional to 56,996.70, 85,512.29 and 17,016.99

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Solution

The fourth proportional to 56,996.70, 85,512.29 and 17,016.99 is: 25,530.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,996.70 : 85,512.29 = 17,016.99 : x
  2. Step 2: Convert to fraction form
    56,996.70/85,512.29 = 17,016.99/x
  3. Step 3: Cross multiply
    56,996.70x = 85,512.29 × 17,016.99
  4. Step 4: Simplify right side
    56,996.70x = 1,455,161,698.72
  5. Step 5: Solve for x
    x = 1,455,161,698.72/56,996.70
  6. Step 6: Final answer
    x = 25,530.63

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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.