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Finding the Fourth Proportional to 56,939.70, 85,409.68 and 17,496.54

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Solution

The fourth proportional to 56,939.70, 85,409.68 and 17,496.54 is: 26,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,939.70 : 85,409.68 = 17,496.54 : x
  2. Step 2: Convert to fraction form
    56,939.70/85,409.68 = 17,496.54/x
  3. Step 3: Cross multiply
    56,939.70x = 85,409.68 × 17,496.54
  4. Step 4: Simplify right side
    56,939.70x = 1,494,373,882.51
  5. Step 5: Solve for x
    x = 1,494,373,882.51/56,939.70
  6. Step 6: Final answer
    x = 26,244.85

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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.