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Finding the Fourth Proportional to 52,950.77, 79,408.53 and 21,352.67

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Solution

The fourth proportional to 52,950.77, 79,408.53 and 21,352.67 is: 32,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,950.77 : 79,408.53 = 21,352.67 : x
  2. Step 2: Convert to fraction form
    52,950.77/79,408.53 = 21,352.67/x
  3. Step 3: Cross multiply
    52,950.77x = 79,408.53 × 21,352.67
  4. Step 4: Simplify right side
    52,950.77x = 1,695,583,739.23
  5. Step 5: Solve for x
    x = 1,695,583,739.23/52,950.77
  6. Step 6: Final answer
    x = 32,021.89

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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.