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Finding the Fourth Proportional to 6,779.48, 9,355.86 and 3,795.30

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Solution

The fourth proportional to 6,779.48, 9,355.86 and 3,795.30 is: 5,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.48 : 9,355.86 = 3,795.30 : x
  2. Step 2: Convert to fraction form
    6,779.48/9,355.86 = 3,795.30/x
  3. Step 3: Cross multiply
    6,779.48x = 9,355.86 × 3,795.30
  4. Step 4: Simplify right side
    6,779.48x = 35,508,295.46
  5. Step 5: Solve for x
    x = 35,508,295.46/6,779.48
  6. Step 6: Final answer
    x = 5,237.61

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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.