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Finding the Fourth Proportional to 5,774.26, 8,661.60 and 1,828.20

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Solution

The fourth proportional to 5,774.26, 8,661.60 and 1,828.20 is: 2,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.26 : 8,661.60 = 1,828.20 : x
  2. Step 2: Convert to fraction form
    5,774.26/8,661.60 = 1,828.20/x
  3. Step 3: Cross multiply
    5,774.26x = 8,661.60 × 1,828.20
  4. Step 4: Simplify right side
    5,774.26x = 15,835,137.12
  5. Step 5: Solve for x
    x = 15,835,137.12/5,774.26
  6. Step 6: Final answer
    x = 2,742.37

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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.