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Finding the Fourth Proportional to 61,573.72, 92,370.30 and 20,011

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Solution

The fourth proportional to 61,573.72, 92,370.30 and 20,011 is: 30,019.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,573.72 : 92,370.30 = 20,011 : x
  2. Step 2: Convert to fraction form
    61,573.72/92,370.30 = 20,011/x
  3. Step 3: Cross multiply
    61,573.72x = 92,370.30 × 20,011
  4. Step 4: Simplify right side
    61,573.72x = 1,848,422,073.30
  5. Step 5: Solve for x
    x = 1,848,422,073.30/61,573.72
  6. Step 6: Final answer
    x = 30,019.66

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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.