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Finding the Fourth Proportional to 4,085.73, 6,128.61 and 1,007.73

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Solution

The fourth proportional to 4,085.73, 6,128.61 and 1,007.73 is: 1,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.73 : 6,128.61 = 1,007.73 : x
  2. Step 2: Convert to fraction form
    4,085.73/6,128.61 = 1,007.73/x
  3. Step 3: Cross multiply
    4,085.73x = 6,128.61 × 1,007.73
  4. Step 4: Simplify right side
    4,085.73x = 6,175,984.16
  5. Step 5: Solve for x
    x = 6,175,984.16/4,085.73
  6. Step 6: Final answer
    x = 1,511.60

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Half scale
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Double scale
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Similar ratio
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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.