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Finding the Fourth Proportional to 10,339.44, 14,268.88 and 6,361.88

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Solution

The fourth proportional to 10,339.44, 14,268.88 and 6,361.88 is: 8,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.44 : 14,268.88 = 6,361.88 : x
  2. Step 2: Convert to fraction form
    10,339.44/14,268.88 = 6,361.88/x
  3. Step 3: Cross multiply
    10,339.44x = 14,268.88 × 6,361.88
  4. Step 4: Simplify right side
    10,339.44x = 90,776,815.05
  5. Step 5: Solve for x
    x = 90,776,815.05/10,339.44
  6. Step 6: Final answer
    x = 8,779.66

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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.