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Finding the Fourth Proportional to 8,858.94, 12,225.12 and 4,825.68

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Solution

The fourth proportional to 8,858.94, 12,225.12 and 4,825.68 is: 6,659.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.94 : 12,225.12 = 4,825.68 : x
  2. Step 2: Convert to fraction form
    8,858.94/12,225.12 = 4,825.68/x
  3. Step 3: Cross multiply
    8,858.94x = 12,225.12 × 4,825.68
  4. Step 4: Simplify right side
    8,858.94x = 58,994,517.08
  5. Step 5: Solve for x
    x = 58,994,517.08/8,858.94
  6. Step 6: Final answer
    x = 6,659.32

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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.