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Finding the Fourth Proportional to 8,616.25, 12,924.39 and 2,460.25

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Solution

The fourth proportional to 8,616.25, 12,924.39 and 2,460.25 is: 3,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.25 : 12,924.39 = 2,460.25 : x
  2. Step 2: Convert to fraction form
    8,616.25/12,924.39 = 2,460.25/x
  3. Step 3: Cross multiply
    8,616.25x = 12,924.39 × 2,460.25
  4. Step 4: Simplify right side
    8,616.25x = 31,797,230.50
  5. Step 5: Solve for x
    x = 31,797,230.50/8,616.25
  6. Step 6: Final answer
    x = 3,690.38

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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.