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Finding the Fourth Proportional to 6,922.94, 9,553.65 and 3,779.13

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Solution

The fourth proportional to 6,922.94, 9,553.65 and 3,779.13 is: 5,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.94 : 9,553.65 = 3,779.13 : x
  2. Step 2: Convert to fraction form
    6,922.94/9,553.65 = 3,779.13/x
  3. Step 3: Cross multiply
    6,922.94x = 9,553.65 × 3,779.13
  4. Step 4: Simplify right side
    6,922.94x = 36,104,485.32
  5. Step 5: Solve for x
    x = 36,104,485.32/6,922.94
  6. Step 6: Final answer
    x = 5,215.20

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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.