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Finding the Fourth Proportional to 18,573.97, 27,867.89 and 7,483.80

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Solution

The fourth proportional to 18,573.97, 27,867.89 and 7,483.80 is: 11,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.97 : 27,867.89 = 7,483.80 : x
  2. Step 2: Convert to fraction form
    18,573.97/27,867.89 = 7,483.80/x
  3. Step 3: Cross multiply
    18,573.97x = 27,867.89 × 7,483.80
  4. Step 4: Simplify right side
    18,573.97x = 208,557,817.35
  5. Step 5: Solve for x
    x = 208,557,817.35/18,573.97
  6. Step 6: Final answer
    x = 11,228.50

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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.