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Finding the Fourth Proportional to 7,825.66, 11,737.38 and 2,894.46

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Solution

The fourth proportional to 7,825.66, 11,737.38 and 2,894.46 is: 4,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.66 : 11,737.38 = 2,894.46 : x
  2. Step 2: Convert to fraction form
    7,825.66/11,737.38 = 2,894.46/x
  3. Step 3: Cross multiply
    7,825.66x = 11,737.38 × 2,894.46
  4. Step 4: Simplify right side
    7,825.66x = 33,973,376.91
  5. Step 5: Solve for x
    x = 33,973,376.91/7,825.66
  6. Step 6: Final answer
    x = 4,341.28

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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.