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Finding the Fourth Proportional to 18,094.61, 27,142.27 and 11,894.15

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Solution

The fourth proportional to 18,094.61, 27,142.27 and 11,894.15 is: 17,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,094.61 : 27,142.27 = 11,894.15 : x
  2. Step 2: Convert to fraction form
    18,094.61/27,142.27 = 11,894.15/x
  3. Step 3: Cross multiply
    18,094.61x = 27,142.27 × 11,894.15
  4. Step 4: Simplify right side
    18,094.61x = 322,834,230.72
  5. Step 5: Solve for x
    x = 322,834,230.72/18,094.61
  6. Step 6: Final answer
    x = 17,841.46

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1.5x scale

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.