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Finding the Fourth Proportional to 11,863.95, 16,372.95 and 6,558.64

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Solution

The fourth proportional to 11,863.95, 16,372.95 and 6,558.64 is: 9,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.95 : 16,372.95 = 6,558.64 : x
  2. Step 2: Convert to fraction form
    11,863.95/16,372.95 = 6,558.64/x
  3. Step 3: Cross multiply
    11,863.95x = 16,372.95 × 6,558.64
  4. Step 4: Simplify right side
    11,863.95x = 107,384,284.79
  5. Step 5: Solve for x
    x = 107,384,284.79/11,863.95
  6. Step 6: Final answer
    x = 9,051.31

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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.