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Finding the Fourth Proportional to 18,797.87, 25,975.28 and 17,886.89

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Solution

The fourth proportional to 18,797.87, 25,975.28 and 17,886.89 is: 24,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.87 : 25,975.28 = 17,886.89 : x
  2. Step 2: Convert to fraction form
    18,797.87/25,975.28 = 17,886.89/x
  3. Step 3: Cross multiply
    18,797.87x = 25,975.28 × 17,886.89
  4. Step 4: Simplify right side
    18,797.87x = 464,616,886.64
  5. Step 5: Solve for x
    x = 464,616,886.64/18,797.87
  6. Step 6: Final answer
    x = 24,716.46

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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.