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Finding the Fourth Proportional to 17,907.55, 26,864.07 and 5,425.99

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Solution

The fourth proportional to 17,907.55, 26,864.07 and 5,425.99 is: 8,139.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,907.55 : 26,864.07 = 5,425.99 : x
  2. Step 2: Convert to fraction form
    17,907.55/26,864.07 = 5,425.99/x
  3. Step 3: Cross multiply
    17,907.55x = 26,864.07 × 5,425.99
  4. Step 4: Simplify right side
    17,907.55x = 145,764,175.18
  5. Step 5: Solve for x
    x = 145,764,175.18/17,907.55
  6. Step 6: Final answer
    x = 8,139.82

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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.