Home / 12,482.72-17,226.29-6,817.64

Finding the Fourth Proportional to 12,482.72, 17,226.29 and 6,817.64

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Solution

The fourth proportional to 12,482.72, 17,226.29 and 6,817.64 is: 9,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.72 : 17,226.29 = 6,817.64 : x
  2. Step 2: Convert to fraction form
    12,482.72/17,226.29 = 6,817.64/x
  3. Step 3: Cross multiply
    12,482.72x = 17,226.29 × 6,817.64
  4. Step 4: Simplify right side
    12,482.72x = 117,442,523.54
  5. Step 5: Solve for x
    x = 117,442,523.54/12,482.72
  6. Step 6: Final answer
    x = 9,408.41

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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.