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Finding the Fourth Proportional to 28,141.94, 42,191.96 and 17,045.96

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Solution

The fourth proportional to 28,141.94, 42,191.96 and 17,045.96 is: 25,556.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.94 : 42,191.96 = 17,045.96 : x
  2. Step 2: Convert to fraction form
    28,141.94/42,191.96 = 17,045.96/x
  3. Step 3: Cross multiply
    28,141.94x = 42,191.96 × 17,045.96
  4. Step 4: Simplify right side
    28,141.94x = 719,202,166.29
  5. Step 5: Solve for x
    x = 719,202,166.29/28,141.94
  6. Step 6: Final answer
    x = 25,556.24

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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.