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Finding the Fourth Proportional to 9,821.56, 14,732.34 and 2,894.44

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Solution

The fourth proportional to 9,821.56, 14,732.34 and 2,894.44 is: 4,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.56 : 14,732.34 = 2,894.44 : x
  2. Step 2: Convert to fraction form
    9,821.56/14,732.34 = 2,894.44/x
  3. Step 3: Cross multiply
    9,821.56x = 14,732.34 × 2,894.44
  4. Step 4: Simplify right side
    9,821.56x = 42,641,874.19
  5. Step 5: Solve for x
    x = 42,641,874.19/9,821.56
  6. Step 6: Final answer
    x = 4,341.66

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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.