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Finding the Fourth Proportional to 7,625.62, 10,515.05 and 6,622.03

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Solution

The fourth proportional to 7,625.62, 10,515.05 and 6,622.03 is: 9,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.62 : 10,515.05 = 6,622.03 : x
  2. Step 2: Convert to fraction form
    7,625.62/10,515.05 = 6,622.03/x
  3. Step 3: Cross multiply
    7,625.62x = 10,515.05 × 6,622.03
  4. Step 4: Simplify right side
    7,625.62x = 69,630,943.44
  5. Step 5: Solve for x
    x = 69,630,943.44/7,625.62
  6. Step 6: Final answer
    x = 9,131.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.