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Finding the Fourth Proportional to 18,157.52, 27,237.86 and 5,009.89

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Solution

The fourth proportional to 18,157.52, 27,237.86 and 5,009.89 is: 7,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.52 : 27,237.86 = 5,009.89 : x
  2. Step 2: Convert to fraction form
    18,157.52/27,237.86 = 5,009.89/x
  3. Step 3: Cross multiply
    18,157.52x = 27,237.86 × 5,009.89
  4. Step 4: Simplify right side
    18,157.52x = 136,458,763.49
  5. Step 5: Solve for x
    x = 136,458,763.49/18,157.52
  6. Step 6: Final answer
    x = 7,515.27

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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.