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Finding the Fourth Proportional to 52,609.37, 78,921.19 and 17,059.09

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Solution

The fourth proportional to 52,609.37, 78,921.19 and 17,059.09 is: 25,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,609.37 : 78,921.19 = 17,059.09 : x
  2. Step 2: Convert to fraction form
    52,609.37/78,921.19 = 17,059.09/x
  3. Step 3: Cross multiply
    52,609.37x = 78,921.19 × 17,059.09
  4. Step 4: Simplify right side
    52,609.37x = 1,346,323,443.17
  5. Step 5: Solve for x
    x = 1,346,323,443.17/52,609.37
  6. Step 6: Final answer
    x = 25,590.95

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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.