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Finding the Fourth Proportional to 18,698.99, 28,040.27 and 7,004.00

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Solution

The fourth proportional to 18,698.99, 28,040.27 and 7,004.00 is: 10,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698.99 : 28,040.27 = 7,004.00 : x
  2. Step 2: Convert to fraction form
    18,698.99/28,040.27 = 7,004.00/x
  3. Step 3: Cross multiply
    18,698.99x = 28,040.27 × 7,004.00
  4. Step 4: Simplify right side
    18,698.99x = 196,394,086.16
  5. Step 5: Solve for x
    x = 196,394,086.16/18,698.99
  6. Step 6: Final answer
    x = 10,502.93

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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.