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Finding the Fourth Proportional to 22,106.61, 33,168.11 and 17,956.77

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Solution

The fourth proportional to 22,106.61, 33,168.11 and 17,956.77 is: 26,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,106.61 : 33,168.11 = 17,956.77 : x
  2. Step 2: Convert to fraction form
    22,106.61/33,168.11 = 17,956.77/x
  3. Step 3: Cross multiply
    22,106.61x = 33,168.11 × 17,956.77
  4. Step 4: Simplify right side
    22,106.61x = 595,592,032.82
  5. Step 5: Solve for x
    x = 595,592,032.82/22,106.61
  6. Step 6: Final answer
    x = 26,941.81

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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.