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Finding the Fourth Proportional to 5,779.96, 7,977.18 and 3,793.48

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Solution

The fourth proportional to 5,779.96, 7,977.18 and 3,793.48 is: 5,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.96 : 7,977.18 = 3,793.48 : x
  2. Step 2: Convert to fraction form
    5,779.96/7,977.18 = 3,793.48/x
  3. Step 3: Cross multiply
    5,779.96x = 7,977.18 × 3,793.48
  4. Step 4: Simplify right side
    5,779.96x = 30,261,272.79
  5. Step 5: Solve for x
    x = 30,261,272.79/5,779.96
  6. Step 6: Final answer
    x = 5,235.55

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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.