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Finding the Fourth Proportional to 6,779.80, 9,356.26 and 4,793.80

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Solution

The fourth proportional to 6,779.80, 9,356.26 and 4,793.80 is: 6,615.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.80 : 9,356.26 = 4,793.80 : x
  2. Step 2: Convert to fraction form
    6,779.80/9,356.26 = 4,793.80/x
  3. Step 3: Cross multiply
    6,779.80x = 9,356.26 × 4,793.80
  4. Step 4: Simplify right side
    6,779.80x = 44,852,039.19
  5. Step 5: Solve for x
    x = 44,852,039.19/6,779.80
  6. Step 6: Final answer
    x = 6,615.54

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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.