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Finding the Fourth Proportional to 61,912.22, 92,881.66 and 19,216.76

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Solution

The fourth proportional to 61,912.22, 92,881.66 and 19,216.76 is: 28,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,912.22 : 92,881.66 = 19,216.76 : x
  2. Step 2: Convert to fraction form
    61,912.22/92,881.66 = 19,216.76/x
  3. Step 3: Cross multiply
    61,912.22x = 92,881.66 × 19,216.76
  4. Step 4: Simplify right side
    61,912.22x = 1,784,884,104.21
  5. Step 5: Solve for x
    x = 1,784,884,104.21/61,912.22
  6. Step 6: Final answer
    x = 28,829.27

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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.