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Finding the Fourth Proportional to 3,335.39, 5,003.33 and 995.21

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Solution

The fourth proportional to 3,335.39, 5,003.33 and 995.21 is: 1,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.39 : 5,003.33 = 995.21 : x
  2. Step 2: Convert to fraction form
    3,335.39/5,003.33 = 995.21/x
  3. Step 3: Cross multiply
    3,335.39x = 5,003.33 × 995.21
  4. Step 4: Simplify right side
    3,335.39x = 4,979,351.54
  5. Step 5: Solve for x
    x = 4,979,351.54/3,335.39
  6. Step 6: Final answer
    x = 1,492.89

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1.5x scale

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.