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Finding the Fourth Proportional to 58,272, 87,383.89 and 18,277.64

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Solution

The fourth proportional to 58,272, 87,383.89 and 18,277.64 is: 27,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,272 : 87,383.89 = 18,277.64 : x
  2. Step 2: Convert to fraction form
    58,272/87,383.89 = 18,277.64/x
  3. Step 3: Cross multiply
    58,272x = 87,383.89 × 18,277.64
  4. Step 4: Simplify right side
    58,272x = 1,597,171,283.22
  5. Step 5: Solve for x
    x = 1,597,171,283.22/58,272
  6. Step 6: Final answer
    x = 27,408.90

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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.