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Finding the Fourth Proportional to 17,959.50, 26,938.62 and 5,479.02

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Solution

The fourth proportional to 17,959.50, 26,938.62 and 5,479.02 is: 8,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959.50 : 26,938.62 = 5,479.02 : x
  2. Step 2: Convert to fraction form
    17,959.50/26,938.62 = 5,479.02/x
  3. Step 3: Cross multiply
    17,959.50x = 26,938.62 × 5,479.02
  4. Step 4: Simplify right side
    17,959.50x = 147,597,237.75
  5. Step 5: Solve for x
    x = 147,597,237.75/17,959.50
  6. Step 6: Final answer
    x = 8,218.34

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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.