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Finding the Fourth Proportional to 8,388.32, 11,576.76 and 4,662.32

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Solution

The fourth proportional to 8,388.32, 11,576.76 and 4,662.32 is: 6,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.32 : 11,576.76 = 4,662.32 : x
  2. Step 2: Convert to fraction form
    8,388.32/11,576.76 = 4,662.32/x
  3. Step 3: Cross multiply
    8,388.32x = 11,576.76 × 4,662.32
  4. Step 4: Simplify right side
    8,388.32x = 53,974,559.68
  5. Step 5: Solve for x
    x = 53,974,559.68/8,388.32
  6. Step 6: Final answer
    x = 6,434.49

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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.