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Finding the Fourth Proportional to 17,603.46, 26,406.36 and 6,509.88

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Solution

The fourth proportional to 17,603.46, 26,406.36 and 6,509.88 is: 9,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.46 : 26,406.36 = 6,509.88 : x
  2. Step 2: Convert to fraction form
    17,603.46/26,406.36 = 6,509.88/x
  3. Step 3: Cross multiply
    17,603.46x = 26,406.36 × 6,509.88
  4. Step 4: Simplify right side
    17,603.46x = 171,902,234.84
  5. Step 5: Solve for x
    x = 171,902,234.84/17,603.46
  6. Step 6: Final answer
    x = 9,765.25

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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.