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Finding the Fourth Proportional to 17,603.78, 26,405.78 and 4,456.14

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Solution

The fourth proportional to 17,603.78, 26,405.78 and 4,456.14 is: 6,684.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.78 : 26,405.78 = 4,456.14 : x
  2. Step 2: Convert to fraction form
    17,603.78/26,405.78 = 4,456.14/x
  3. Step 3: Cross multiply
    17,603.78x = 26,405.78 × 4,456.14
  4. Step 4: Simplify right side
    17,603.78x = 117,667,852.49
  5. Step 5: Solve for x
    x = 117,667,852.49/17,603.78
  6. Step 6: Final answer
    x = 6,684.24

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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.