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Finding the Fourth Proportional to 18,775.53, 25,958.88 and 17,949.33

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Solution

The fourth proportional to 18,775.53, 25,958.88 and 17,949.33 is: 24,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.53 : 25,958.88 = 17,949.33 : x
  2. Step 2: Convert to fraction form
    18,775.53/25,958.88 = 17,949.33/x
  3. Step 3: Cross multiply
    18,775.53x = 25,958.88 × 17,949.33
  4. Step 4: Simplify right side
    18,775.53x = 465,944,503.55
  5. Step 5: Solve for x
    x = 465,944,503.55/18,775.53
  6. Step 6: Final answer
    x = 24,816.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.