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Finding the Fourth Proportional to 52,769.88, 79,171.02 and 21,607.56

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Solution

The fourth proportional to 52,769.88, 79,171.02 and 21,607.56 is: 32,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,769.88 : 79,171.02 = 21,607.56 : x
  2. Step 2: Convert to fraction form
    52,769.88/79,171.02 = 21,607.56/x
  3. Step 3: Cross multiply
    52,769.88x = 79,171.02 × 21,607.56
  4. Step 4: Simplify right side
    52,769.88x = 1,710,692,564.91
  5. Step 5: Solve for x
    x = 1,710,692,564.91/52,769.88
  6. Step 6: Final answer
    x = 32,417.97

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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.