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Finding the Fourth Proportional to 19,294.72, 28,946.85 and 13,734.25

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Solution

The fourth proportional to 19,294.72, 28,946.85 and 13,734.25 is: 20,604.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294.72 : 28,946.85 = 13,734.25 : x
  2. Step 2: Convert to fraction form
    19,294.72/28,946.85 = 13,734.25/x
  3. Step 3: Cross multiply
    19,294.72x = 28,946.85 × 13,734.25
  4. Step 4: Simplify right side
    19,294.72x = 397,563,274.61
  5. Step 5: Solve for x
    x = 397,563,274.61/19,294.72
  6. Step 6: Final answer
    x = 20,604.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.