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Finding the Fourth Proportional to 18,294.60, 27,440.82 and 11,275.96

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Solution

The fourth proportional to 18,294.60, 27,440.82 and 11,275.96 is: 16,913.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.60 : 27,440.82 = 11,275.96 : x
  2. Step 2: Convert to fraction form
    18,294.60/27,440.82 = 11,275.96/x
  3. Step 3: Cross multiply
    18,294.60x = 27,440.82 × 11,275.96
  4. Step 4: Simplify right side
    18,294.60x = 309,421,588.69
  5. Step 5: Solve for x
    x = 309,421,588.69/18,294.60
  6. Step 6: Final answer
    x = 16,913.27

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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.