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Finding the Fourth Proportional to 3,838.82, 5,758.59 and 1,530.50

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Solution

The fourth proportional to 3,838.82, 5,758.59 and 1,530.50 is: 2,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.82 : 5,758.59 = 1,530.50 : x
  2. Step 2: Convert to fraction form
    3,838.82/5,758.59 = 1,530.50/x
  3. Step 3: Cross multiply
    3,838.82x = 5,758.59 × 1,530.50
  4. Step 4: Simplify right side
    3,838.82x = 8,813,522.00
  5. Step 5: Solve for x
    x = 8,813,522.00/3,838.82
  6. Step 6: Final answer
    x = 2,295.89

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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.