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Finding the Fourth Proportional to 56,603.60, 84,920.70 and 19,163.67

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Solution

The fourth proportional to 56,603.60, 84,920.70 and 19,163.67 is: 28,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.60 : 84,920.70 = 19,163.67 : x
  2. Step 2: Convert to fraction form
    56,603.60/84,920.70 = 19,163.67/x
  3. Step 3: Cross multiply
    56,603.60x = 84,920.70 × 19,163.67
  4. Step 4: Simplify right side
    56,603.60x = 1,627,392,270.97
  5. Step 5: Solve for x
    x = 1,627,392,270.97/56,603.60
  6. Step 6: Final answer
    x = 28,750.69

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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.