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Finding the Fourth Proportional to 12,467.64, 18,709.56 and 11,466.48

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Solution

The fourth proportional to 12,467.64, 18,709.56 and 11,466.48 is: 17,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.64 : 18,709.56 = 11,466.48 : x
  2. Step 2: Convert to fraction form
    12,467.64/18,709.56 = 11,466.48/x
  3. Step 3: Cross multiply
    12,467.64x = 18,709.56 × 11,466.48
  4. Step 4: Simplify right side
    12,467.64x = 214,532,795.55
  5. Step 5: Solve for x
    x = 214,532,795.55/12,467.64
  6. Step 6: Final answer
    x = 17,207.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.