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Finding the Fourth Proportional to 69,735.92, 104,602.95 and 17,145.86

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Solution

The fourth proportional to 69,735.92, 104,602.95 and 17,145.86 is: 25,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,735.92 : 104,602.95 = 17,145.86 : x
  2. Step 2: Convert to fraction form
    69,735.92/104,602.95 = 17,145.86/x
  3. Step 3: Cross multiply
    69,735.92x = 104,602.95 × 17,145.86
  4. Step 4: Simplify right side
    69,735.92x = 1,793,507,013.27
  5. Step 5: Solve for x
    x = 1,793,507,013.27/69,735.92
  6. Step 6: Final answer
    x = 25,718.56

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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.