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Finding the Fourth Proportional to 5,505.91, 7,609.08 and 4,509.61

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Solution

The fourth proportional to 5,505.91, 7,609.08 and 4,509.61 is: 6,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.91 : 7,609.08 = 4,509.61 : x
  2. Step 2: Convert to fraction form
    5,505.91/7,609.08 = 4,509.61/x
  3. Step 3: Cross multiply
    5,505.91x = 7,609.08 × 4,509.61
  4. Step 4: Simplify right side
    5,505.91x = 34,313,983.26
  5. Step 5: Solve for x
    x = 34,313,983.26/5,505.91
  6. Step 6: Final answer
    x = 6,232.21

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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.