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Finding the Fourth Proportional to 22,570.19, 33,855.21 and 7,779.09

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Solution

The fourth proportional to 22,570.19, 33,855.21 and 7,779.09 is: 11,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,570.19 : 33,855.21 = 7,779.09 : x
  2. Step 2: Convert to fraction form
    22,570.19/33,855.21 = 7,779.09/x
  3. Step 3: Cross multiply
    22,570.19x = 33,855.21 × 7,779.09
  4. Step 4: Simplify right side
    22,570.19x = 263,362,725.56
  5. Step 5: Solve for x
    x = 263,362,725.56/22,570.19
  6. Step 6: Final answer
    x = 11,668.61

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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.