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Finding the Fourth Proportional to 3,215.98, 4,824.66 and 1,368.67

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Solution

The fourth proportional to 3,215.98, 4,824.66 and 1,368.67 is: 2,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.98 : 4,824.66 = 1,368.67 : x
  2. Step 2: Convert to fraction form
    3,215.98/4,824.66 = 1,368.67/x
  3. Step 3: Cross multiply
    3,215.98x = 4,824.66 × 1,368.67
  4. Step 4: Simplify right side
    3,215.98x = 6,603,367.40
  5. Step 5: Solve for x
    x = 6,603,367.40/3,215.98
  6. Step 6: Final answer
    x = 2,053.30

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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.