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Finding the Fourth Proportional to 52,661.85, 78,992.79 and 17,601.51

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Solution

The fourth proportional to 52,661.85, 78,992.79 and 17,601.51 is: 26,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,661.85 : 78,992.79 = 17,601.51 : x
  2. Step 2: Convert to fraction form
    52,661.85/78,992.79 = 17,601.51/x
  3. Step 3: Cross multiply
    52,661.85x = 78,992.79 × 17,601.51
  4. Step 4: Simplify right side
    52,661.85x = 1,390,392,383.11
  5. Step 5: Solve for x
    x = 1,390,392,383.11/52,661.85
  6. Step 6: Final answer
    x = 26,402.27

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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.