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Finding the Fourth Proportional to 37,326, 51,509.88 and 20,559

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Solution

The fourth proportional to 37,326, 51,509.88 and 20,559 is: 28,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,326 : 51,509.88 = 20,559 : x
  2. Step 2: Convert to fraction form
    37,326/51,509.88 = 20,559/x
  3. Step 3: Cross multiply
    37,326x = 51,509.88 × 20,559
  4. Step 4: Simplify right side
    37,326x = 1,058,991,622.92
  5. Step 5: Solve for x
    x = 1,058,991,622.92/37,326
  6. Step 6: Final answer
    x = 28,371.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.