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Finding the Fourth Proportional to 7,751.98, 11,633.46 and 3,370.72

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Solution

The fourth proportional to 7,751.98, 11,633.46 and 3,370.72 is: 5,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.98 : 11,633.46 = 3,370.72 : x
  2. Step 2: Convert to fraction form
    7,751.98/11,633.46 = 3,370.72/x
  3. Step 3: Cross multiply
    7,751.98x = 11,633.46 × 3,370.72
  4. Step 4: Simplify right side
    7,751.98x = 39,213,136.29
  5. Step 5: Solve for x
    x = 39,213,136.29/7,751.98
  6. Step 6: Final answer
    x = 5,058.47

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1.5x scale

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.