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Finding the Fourth Proportional to 28,973.52, 43,394.52 and 18,443.52

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Solution

The fourth proportional to 28,973.52, 43,394.52 and 18,443.52 is: 27,623.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.52 : 43,394.52 = 18,443.52 : x
  2. Step 2: Convert to fraction form
    28,973.52/43,394.52 = 18,443.52/x
  3. Step 3: Cross multiply
    28,973.52x = 43,394.52 × 18,443.52
  4. Step 4: Simplify right side
    28,973.52x = 800,347,697.51
  5. Step 5: Solve for x
    x = 800,347,697.51/28,973.52
  6. Step 6: Final answer
    x = 27,623.42

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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.