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Finding the Fourth Proportional to 18,109.68, 27,195.84 and 10,760.32

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Solution

The fourth proportional to 18,109.68, 27,195.84 and 10,760.32 is: 16,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.68 : 27,195.84 = 10,760.32 : x
  2. Step 2: Convert to fraction form
    18,109.68/27,195.84 = 10,760.32/x
  3. Step 3: Cross multiply
    18,109.68x = 27,195.84 × 10,760.32
  4. Step 4: Simplify right side
    18,109.68x = 292,635,941.07
  5. Step 5: Solve for x
    x = 292,635,941.07/18,109.68
  6. Step 6: Final answer
    x = 16,159.09

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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.