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Finding the Fourth Proportional to 9,039.70, 13,559.55 and 8,233.30

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Solution

The fourth proportional to 9,039.70, 13,559.55 and 8,233.30 is: 12,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.70 : 13,559.55 = 8,233.30 : x
  2. Step 2: Convert to fraction form
    9,039.70/13,559.55 = 8,233.30/x
  3. Step 3: Cross multiply
    9,039.70x = 13,559.55 × 8,233.30
  4. Step 4: Simplify right side
    9,039.70x = 111,639,843.02
  5. Step 5: Solve for x
    x = 111,639,843.02/9,039.70
  6. Step 6: Final answer
    x = 12,349.95

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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.