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Finding the Fourth Proportional to 18,055.05, 27,060.71 and 15,868.05

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Solution

The fourth proportional to 18,055.05, 27,060.71 and 15,868.05 is: 23,782.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.05 : 27,060.71 = 15,868.05 : x
  2. Step 2: Convert to fraction form
    18,055.05/27,060.71 = 15,868.05/x
  3. Step 3: Cross multiply
    18,055.05x = 27,060.71 × 15,868.05
  4. Step 4: Simplify right side
    18,055.05x = 429,400,715.34
  5. Step 5: Solve for x
    x = 429,400,715.34/18,055.05
  6. Step 6: Final answer
    x = 23,782.86

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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.