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Finding the Fourth Proportional to 5,779.60, 7,973.71 and 3,791.26

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Solution

The fourth proportional to 5,779.60, 7,973.71 and 3,791.26 is: 5,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.60 : 7,973.71 = 3,791.26 : x
  2. Step 2: Convert to fraction form
    5,779.60/7,973.71 = 3,791.26/x
  3. Step 3: Cross multiply
    5,779.60x = 7,973.71 × 3,791.26
  4. Step 4: Simplify right side
    5,779.60x = 30,230,407.77
  5. Step 5: Solve for x
    x = 30,230,407.77/5,779.60
  6. Step 6: Final answer
    x = 5,230.54

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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.