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Finding the Fourth Proportional to 18,094.78, 27,132.91 and 7,561.93

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Solution

The fourth proportional to 18,094.78, 27,132.91 and 7,561.93 is: 11,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,094.78 : 27,132.91 = 7,561.93 : x
  2. Step 2: Convert to fraction form
    18,094.78/27,132.91 = 7,561.93/x
  3. Step 3: Cross multiply
    18,094.78x = 27,132.91 × 7,561.93
  4. Step 4: Simplify right side
    18,094.78x = 205,177,030.45
  5. Step 5: Solve for x
    x = 205,177,030.45/18,094.78
  6. Step 6: Final answer
    x = 11,339.02

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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.