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Finding the Fourth Proportional to 52,736.68, 79,104.90 and 13,296.88

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Solution

The fourth proportional to 52,736.68, 79,104.90 and 13,296.88 is: 19,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,736.68 : 79,104.90 = 13,296.88 : x
  2. Step 2: Convert to fraction form
    52,736.68/79,104.90 = 13,296.88/x
  3. Step 3: Cross multiply
    52,736.68x = 79,104.90 × 13,296.88
  4. Step 4: Simplify right side
    52,736.68x = 1,051,848,362.71
  5. Step 5: Solve for x
    x = 1,051,848,362.71/52,736.68
  6. Step 6: Final answer
    x = 19,945.29

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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.