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Finding the Fourth Proportional to 18,908.91, 26,094.91 and 10,411.91

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Solution

The fourth proportional to 18,908.91, 26,094.91 and 10,411.91 is: 14,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.91 : 26,094.91 = 10,411.91 : x
  2. Step 2: Convert to fraction form
    18,908.91/26,094.91 = 10,411.91/x
  3. Step 3: Cross multiply
    18,908.91x = 26,094.91 × 10,411.91
  4. Step 4: Simplify right side
    18,908.91x = 271,697,723.90
  5. Step 5: Solve for x
    x = 271,697,723.90/18,908.91
  6. Step 6: Final answer
    x = 14,368.77

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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.