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Finding the Fourth Proportional to 2,726.70, 4,090.35 and 995.70

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Solution

The fourth proportional to 2,726.70, 4,090.35 and 995.70 is: 1,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.70 : 4,090.35 = 995.70 : x
  2. Step 2: Convert to fraction form
    2,726.70/4,090.35 = 995.70/x
  3. Step 3: Cross multiply
    2,726.70x = 4,090.35 × 995.70
  4. Step 4: Simplify right side
    2,726.70x = 4,072,761.50
  5. Step 5: Solve for x
    x = 4,072,761.50/2,726.70
  6. Step 6: Final answer
    x = 1,493.66

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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.