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Finding the Fourth Proportional to 6,893.38, 9,512.77 and 4,240.73

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Solution

The fourth proportional to 6,893.38, 9,512.77 and 4,240.73 is: 5,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.38 : 9,512.77 = 4,240.73 : x
  2. Step 2: Convert to fraction form
    6,893.38/9,512.77 = 4,240.73/x
  3. Step 3: Cross multiply
    6,893.38x = 9,512.77 × 4,240.73
  4. Step 4: Simplify right side
    6,893.38x = 40,341,071.57
  5. Step 5: Solve for x
    x = 40,341,071.57/6,893.38
  6. Step 6: Final answer
    x = 5,852.15

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Half scale
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Double scale
Find fourth proportional to 6,894.38, 9,514.15 and 4,241.73
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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.