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Finding the Fourth Proportional to 3,592.16, 5,388.20 and 995

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Solution

The fourth proportional to 3,592.16, 5,388.20 and 995 is: 1,492.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.16 : 5,388.20 = 995 : x
  2. Step 2: Convert to fraction form
    3,592.16/5,388.20 = 995/x
  3. Step 3: Cross multiply
    3,592.16x = 5,388.20 × 995
  4. Step 4: Simplify right side
    3,592.16x = 5,361,259
  5. Step 5: Solve for x
    x = 5,361,259/3,592.16
  6. Step 6: Final answer
    x = 1,492.49

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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.