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Finding the Fourth Proportional to 8,351.88, 11,523 and 4,814.64

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Solution

The fourth proportional to 8,351.88, 11,523 and 4,814.64 is: 6,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.88 : 11,523 = 4,814.64 : x
  2. Step 2: Convert to fraction form
    8,351.88/11,523 = 4,814.64/x
  3. Step 3: Cross multiply
    8,351.88x = 11,523 × 4,814.64
  4. Step 4: Simplify right side
    8,351.88x = 55,479,096.72
  5. Step 5: Solve for x
    x = 55,479,096.72/8,351.88
  6. Step 6: Final answer
    x = 6,642.71

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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.