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Finding the Fourth Proportional to 11,874.56, 16,385.72 and 6,568.64

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Solution

The fourth proportional to 11,874.56, 16,385.72 and 6,568.64 is: 9,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.56 : 16,385.72 = 6,568.64 : x
  2. Step 2: Convert to fraction form
    11,874.56/16,385.72 = 6,568.64/x
  3. Step 3: Cross multiply
    11,874.56x = 16,385.72 × 6,568.64
  4. Step 4: Simplify right side
    11,874.56x = 107,631,895.82
  5. Step 5: Solve for x
    x = 107,631,895.82/11,874.56
  6. Step 6: Final answer
    x = 9,064.07

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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.