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Finding the Fourth Proportional to 61,640.63, 92,405.45 and 22,170

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Solution

The fourth proportional to 61,640.63, 92,405.45 and 22,170 is: 33,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,640.63 : 92,405.45 = 22,170 : x
  2. Step 2: Convert to fraction form
    61,640.63/92,405.45 = 22,170/x
  3. Step 3: Cross multiply
    61,640.63x = 92,405.45 × 22,170
  4. Step 4: Simplify right side
    61,640.63x = 2,048,628,881.93
  5. Step 5: Solve for x
    x = 2,048,628,881.93/61,640.63
  6. Step 6: Final answer
    x = 33,235.04

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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.