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Finding the Fourth Proportional to 3,046.50, 4,569.73 and 855.23

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Solution

The fourth proportional to 3,046.50, 4,569.73 and 855.23 is: 1,282.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,046.50 : 4,569.73 = 855.23 : x
  2. Step 2: Convert to fraction form
    3,046.50/4,569.73 = 855.23/x
  3. Step 3: Cross multiply
    3,046.50x = 4,569.73 × 855.23
  4. Step 4: Simplify right side
    3,046.50x = 3,908,156.63
  5. Step 5: Solve for x
    x = 3,908,156.63/3,046.50
  6. Step 6: Final answer
    x = 1,282.84

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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.