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Finding the Fourth Proportional to 5,492.43, 7,579.69 and 3,369.13

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Solution

The fourth proportional to 5,492.43, 7,579.69 and 3,369.13 is: 4,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.43 : 7,579.69 = 3,369.13 : x
  2. Step 2: Convert to fraction form
    5,492.43/7,579.69 = 3,369.13/x
  3. Step 3: Cross multiply
    5,492.43x = 7,579.69 × 3,369.13
  4. Step 4: Simplify right side
    5,492.43x = 25,536,954.13
  5. Step 5: Solve for x
    x = 25,536,954.13/5,492.43
  6. Step 6: Final answer
    x = 4,649.48

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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.