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Finding the Fourth Proportional to 18,283.88, 27,389.82 and 11,599.76

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Solution

The fourth proportional to 18,283.88, 27,389.82 and 11,599.76 is: 17,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.88 : 27,389.82 = 11,599.76 : x
  2. Step 2: Convert to fraction form
    18,283.88/27,389.82 = 11,599.76/x
  3. Step 3: Cross multiply
    18,283.88x = 27,389.82 × 11,599.76
  4. Step 4: Simplify right side
    18,283.88x = 317,715,338.44
  5. Step 5: Solve for x
    x = 317,715,338.44/18,283.88
  6. Step 6: Final answer
    x = 17,376.80

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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.