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Finding the Fourth Proportional to 11,595.78, 17,396.10 and 3,805.20

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Solution

The fourth proportional to 11,595.78, 17,396.10 and 3,805.20 is: 5,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,595.78 : 17,396.10 = 3,805.20 : x
  2. Step 2: Convert to fraction form
    11,595.78/17,396.10 = 3,805.20/x
  3. Step 3: Cross multiply
    11,595.78x = 17,396.10 × 3,805.20
  4. Step 4: Simplify right side
    11,595.78x = 66,195,639.72
  5. Step 5: Solve for x
    x = 66,195,639.72/11,595.78
  6. Step 6: Final answer
    x = 5,708.60

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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.