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Finding the Fourth Proportional to 9,251.84, 13,878.04 and 2,679.50

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Solution

The fourth proportional to 9,251.84, 13,878.04 and 2,679.50 is: 4,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.84 : 13,878.04 = 2,679.50 : x
  2. Step 2: Convert to fraction form
    9,251.84/13,878.04 = 2,679.50/x
  3. Step 3: Cross multiply
    9,251.84x = 13,878.04 × 2,679.50
  4. Step 4: Simplify right side
    9,251.84x = 37,186,208.18
  5. Step 5: Solve for x
    x = 37,186,208.18/9,251.84
  6. Step 6: Final answer
    x = 4,019.33

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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.