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Finding the Fourth Proportional to 29,702.73, 40,989.76 and 17,768.87

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Solution

The fourth proportional to 29,702.73, 40,989.76 and 17,768.87 is: 24,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,702.73 : 40,989.76 = 17,768.87 : x
  2. Step 2: Convert to fraction form
    29,702.73/40,989.76 = 17,768.87/x
  3. Step 3: Cross multiply
    29,702.73x = 40,989.76 × 17,768.87
  4. Step 4: Simplify right side
    29,702.73x = 728,341,951.63
  5. Step 5: Solve for x
    x = 728,341,951.63/29,702.73
  6. Step 6: Final answer
    x = 24,521.04

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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.