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Finding the Fourth Proportional to 17,918.01, 26,874.99 and 4,770.09

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Solution

The fourth proportional to 17,918.01, 26,874.99 and 4,770.09 is: 7,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.01 : 26,874.99 = 4,770.09 : x
  2. Step 2: Convert to fraction form
    17,918.01/26,874.99 = 4,770.09/x
  3. Step 3: Cross multiply
    17,918.01x = 26,874.99 × 4,770.09
  4. Step 4: Simplify right side
    17,918.01x = 128,196,121.05
  5. Step 5: Solve for x
    x = 128,196,121.05/17,918.01
  6. Step 6: Final answer
    x = 7,154.60

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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.