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Finding the Fourth Proportional to 5,235.69, 7,218.27 and 4,486.44

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Solution

The fourth proportional to 5,235.69, 7,218.27 and 4,486.44 is: 6,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.69 : 7,218.27 = 4,486.44 : x
  2. Step 2: Convert to fraction form
    5,235.69/7,218.27 = 4,486.44/x
  3. Step 3: Cross multiply
    5,235.69x = 7,218.27 × 4,486.44
  4. Step 4: Simplify right side
    5,235.69x = 32,384,335.26
  5. Step 5: Solve for x
    x = 32,384,335.26/5,235.69
  6. Step 6: Final answer
    x = 6,185.30

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.