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Finding the Fourth Proportional to 18,573.82, 27,853.80 and 7,476.76

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Solution

The fourth proportional to 18,573.82, 27,853.80 and 7,476.76 is: 11,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.82 : 27,853.80 = 7,476.76 : x
  2. Step 2: Convert to fraction form
    18,573.82/27,853.80 = 7,476.76/x
  3. Step 3: Cross multiply
    18,573.82x = 27,853.80 × 7,476.76
  4. Step 4: Simplify right side
    18,573.82x = 208,256,177.69
  5. Step 5: Solve for x
    x = 208,256,177.69/18,573.82
  6. Step 6: Final answer
    x = 11,212.35

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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.