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Finding the Fourth Proportional to 12,294.10, 18,453.04 and 11,628.10

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Solution

The fourth proportional to 12,294.10, 18,453.04 and 11,628.10 is: 17,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294.10 : 18,453.04 = 11,628.10 : x
  2. Step 2: Convert to fraction form
    12,294.10/18,453.04 = 11,628.10/x
  3. Step 3: Cross multiply
    12,294.10x = 18,453.04 × 11,628.10
  4. Step 4: Simplify right side
    12,294.10x = 214,573,794.42
  5. Step 5: Solve for x
    x = 214,573,794.42/12,294.10
  6. Step 6: Final answer
    x = 17,453.40

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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.