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Finding the Fourth Proportional to 56,958.32, 78,603 and 33,086

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Solution

The fourth proportional to 56,958.32, 78,603 and 33,086 is: 45,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,958.32 : 78,603 = 33,086 : x
  2. Step 2: Convert to fraction form
    56,958.32/78,603 = 33,086/x
  3. Step 3: Cross multiply
    56,958.32x = 78,603 × 33,086
  4. Step 4: Simplify right side
    56,958.32x = 2,600,658,858
  5. Step 5: Solve for x
    x = 2,600,658,858/56,958.32
  6. Step 6: Final answer
    x = 45,658.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.