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Finding the Fourth Proportional to 61,402.70, 92,104.05 and 21,957.42

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Solution

The fourth proportional to 61,402.70, 92,104.05 and 21,957.42 is: 32,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,402.70 : 92,104.05 = 21,957.42 : x
  2. Step 2: Convert to fraction form
    61,402.70/92,104.05 = 21,957.42/x
  3. Step 3: Cross multiply
    61,402.70x = 92,104.05 × 21,957.42
  4. Step 4: Simplify right side
    61,402.70x = 2,022,366,739.24
  5. Step 5: Solve for x
    x = 2,022,366,739.24/61,402.70
  6. Step 6: Final answer
    x = 32,936.12

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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.