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Finding the Fourth Proportional to 5,704.65, 8,556.99 and 1,809.06

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Solution

The fourth proportional to 5,704.65, 8,556.99 and 1,809.06 is: 2,713.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.65 : 8,556.99 = 1,809.06 : x
  2. Step 2: Convert to fraction form
    5,704.65/8,556.99 = 1,809.06/x
  3. Step 3: Cross multiply
    5,704.65x = 8,556.99 × 1,809.06
  4. Step 4: Simplify right side
    5,704.65x = 15,480,108.33
  5. Step 5: Solve for x
    x = 15,480,108.33/5,704.65
  6. Step 6: Final answer
    x = 2,713.59

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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.