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Finding the Fourth Proportional to 18,641.94, 27,967.78 and 6,955.26

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Solution

The fourth proportional to 18,641.94, 27,967.78 and 6,955.26 is: 10,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.94 : 27,967.78 = 6,955.26 : x
  2. Step 2: Convert to fraction form
    18,641.94/27,967.78 = 6,955.26/x
  3. Step 3: Cross multiply
    18,641.94x = 27,967.78 × 6,955.26
  4. Step 4: Simplify right side
    18,641.94x = 194,523,181.52
  5. Step 5: Solve for x
    x = 194,523,181.52/18,641.94
  6. Step 6: Final answer
    x = 10,434.71

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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.