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Finding the Fourth Proportional to 12,482.91, 17,226.50 and 6,817.59

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Solution

The fourth proportional to 12,482.91, 17,226.50 and 6,817.59 is: 9,408.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.91 : 17,226.50 = 6,817.59 : x
  2. Step 2: Convert to fraction form
    12,482.91/17,226.50 = 6,817.59/x
  3. Step 3: Cross multiply
    12,482.91x = 17,226.50 × 6,817.59
  4. Step 4: Simplify right side
    12,482.91x = 117,443,214.14
  5. Step 5: Solve for x
    x = 117,443,214.14/12,482.91
  6. Step 6: Final answer
    x = 9,408.32

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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.