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Finding the Fourth Proportional to 18,922.67, 26,093.49 and 14,135.11

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Solution

The fourth proportional to 18,922.67, 26,093.49 and 14,135.11 is: 19,491.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.67 : 26,093.49 = 14,135.11 : x
  2. Step 2: Convert to fraction form
    18,922.67/26,093.49 = 14,135.11/x
  3. Step 3: Cross multiply
    18,922.67x = 26,093.49 × 14,135.11
  4. Step 4: Simplify right side
    18,922.67x = 368,834,233.19
  5. Step 5: Solve for x
    x = 368,834,233.19/18,922.67
  6. Step 6: Final answer
    x = 19,491.66

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1.5x scale

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.