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Finding the Fourth Proportional to 7,616.53, 10,511.04 and 4,213.59

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Solution

The fourth proportional to 7,616.53, 10,511.04 and 4,213.59 is: 5,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.53 : 10,511.04 = 4,213.59 : x
  2. Step 2: Convert to fraction form
    7,616.53/10,511.04 = 4,213.59/x
  3. Step 3: Cross multiply
    7,616.53x = 10,511.04 × 4,213.59
  4. Step 4: Simplify right side
    7,616.53x = 44,289,213.03
  5. Step 5: Solve for x
    x = 44,289,213.03/7,616.53
  6. Step 6: Final answer
    x = 5,814.88

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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.