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Finding the Fourth Proportional to 11,967.99, 16,515.52 and 6,662.69

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Solution

The fourth proportional to 11,967.99, 16,515.52 and 6,662.69 is: 9,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.99 : 16,515.52 = 6,662.69 : x
  2. Step 2: Convert to fraction form
    11,967.99/16,515.52 = 6,662.69/x
  3. Step 3: Cross multiply
    11,967.99x = 16,515.52 × 6,662.69
  4. Step 4: Simplify right side
    11,967.99x = 110,037,752.65
  5. Step 5: Solve for x
    x = 110,037,752.65/11,967.99
  6. Step 6: Final answer
    x = 9,194.34

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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.