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Finding the Fourth Proportional to 14,449.62, 21,674.12 and 6,658.44

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Solution

The fourth proportional to 14,449.62, 21,674.12 and 6,658.44 is: 9,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,449.62 : 21,674.12 = 6,658.44 : x
  2. Step 2: Convert to fraction form
    14,449.62/21,674.12 = 6,658.44/x
  3. Step 3: Cross multiply
    14,449.62x = 21,674.12 × 6,658.44
  4. Step 4: Simplify right side
    14,449.62x = 144,315,794.28
  5. Step 5: Solve for x
    x = 144,315,794.28/14,449.62
  6. Step 6: Final answer
    x = 9,987.51

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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.