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Finding the Fourth Proportional to 11,953.28, 17,929.89 and 5,694.30

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Solution

The fourth proportional to 11,953.28, 17,929.89 and 5,694.30 is: 8,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.28 : 17,929.89 = 5,694.30 : x
  2. Step 2: Convert to fraction form
    11,953.28/17,929.89 = 5,694.30/x
  3. Step 3: Cross multiply
    11,953.28x = 17,929.89 × 5,694.30
  4. Step 4: Simplify right side
    11,953.28x = 102,098,172.63
  5. Step 5: Solve for x
    x = 102,098,172.63/11,953.28
  6. Step 6: Final answer
    x = 8,541.43

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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.