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Finding the Fourth Proportional to 23,021.70, 34,532.55 and 8,231.10

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Solution

The fourth proportional to 23,021.70, 34,532.55 and 8,231.10 is: 12,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,021.70 : 34,532.55 = 8,231.10 : x
  2. Step 2: Convert to fraction form
    23,021.70/34,532.55 = 8,231.10/x
  3. Step 3: Cross multiply
    23,021.70x = 34,532.55 × 8,231.10
  4. Step 4: Simplify right side
    23,021.70x = 284,240,872.31
  5. Step 5: Solve for x
    x = 284,240,872.31/23,021.70
  6. Step 6: Final answer
    x = 12,346.65

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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.