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Finding the Fourth Proportional to 7,891.04, 11,834.32 and 2,957.04

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Solution

The fourth proportional to 7,891.04, 11,834.32 and 2,957.04 is: 4,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.04 : 11,834.32 = 2,957.04 : x
  2. Step 2: Convert to fraction form
    7,891.04/11,834.32 = 2,957.04/x
  3. Step 3: Cross multiply
    7,891.04x = 11,834.32 × 2,957.04
  4. Step 4: Simplify right side
    7,891.04x = 34,994,557.61
  5. Step 5: Solve for x
    x = 34,994,557.61/7,891.04
  6. Step 6: Final answer
    x = 4,434.72

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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.