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Finding the Fourth Proportional to 21,883.92, 32,834.79 and 10,189.95

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Solution

The fourth proportional to 21,883.92, 32,834.79 and 10,189.95 is: 15,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.92 : 32,834.79 = 10,189.95 : x
  2. Step 2: Convert to fraction form
    21,883.92/32,834.79 = 10,189.95/x
  3. Step 3: Cross multiply
    21,883.92x = 32,834.79 × 10,189.95
  4. Step 4: Simplify right side
    21,883.92x = 334,584,868.36
  5. Step 5: Solve for x
    x = 334,584,868.36/21,883.92
  6. Step 6: Final answer
    x = 15,289.07

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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.