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Finding the Fourth Proportional to 5,779.25, 7,976.31 and 3,542.36

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Solution

The fourth proportional to 5,779.25, 7,976.31 and 3,542.36 is: 4,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.25 : 7,976.31 = 3,542.36 : x
  2. Step 2: Convert to fraction form
    5,779.25/7,976.31 = 3,542.36/x
  3. Step 3: Cross multiply
    5,779.25x = 7,976.31 × 3,542.36
  4. Step 4: Simplify right side
    5,779.25x = 28,254,961.49
  5. Step 5: Solve for x
    x = 28,254,961.49/5,779.25
  6. Step 6: Final answer
    x = 4,889.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.