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Finding the Fourth Proportional to 6,245.32, 8,618.30 and 3,590.92

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Solution

The fourth proportional to 6,245.32, 8,618.30 and 3,590.92 is: 4,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.32 : 8,618.30 = 3,590.92 : x
  2. Step 2: Convert to fraction form
    6,245.32/8,618.30 = 3,590.92/x
  3. Step 3: Cross multiply
    6,245.32x = 8,618.30 × 3,590.92
  4. Step 4: Simplify right side
    6,245.32x = 30,947,625.84
  5. Step 5: Solve for x
    x = 30,947,625.84/6,245.32
  6. Step 6: Final answer
    x = 4,955.33

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Half scale
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Double scale
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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.