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Finding the Fourth Proportional to 56,996.31, 85,494.47 and 15,443.31

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Solution

The fourth proportional to 56,996.31, 85,494.47 and 15,443.31 is: 23,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,996.31 : 85,494.47 = 15,443.31 : x
  2. Step 2: Convert to fraction form
    56,996.31/85,494.47 = 15,443.31/x
  3. Step 3: Cross multiply
    56,996.31x = 85,494.47 × 15,443.31
  4. Step 4: Simplify right side
    56,996.31x = 1,320,317,603.50
  5. Step 5: Solve for x
    x = 1,320,317,603.50/56,996.31
  6. Step 6: Final answer
    x = 23,164.97

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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.