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Finding the Fourth Proportional to 52,950.72, 79,408.45 and 21,352.62

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Solution

The fourth proportional to 52,950.72, 79,408.45 and 21,352.62 is: 32,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,950.72 : 79,408.45 = 21,352.62 : x
  2. Step 2: Convert to fraction form
    52,950.72/79,408.45 = 21,352.62/x
  3. Step 3: Cross multiply
    52,950.72x = 79,408.45 × 21,352.62
  4. Step 4: Simplify right side
    52,950.72x = 1,695,578,782.11
  5. Step 5: Solve for x
    x = 1,695,578,782.11/52,950.72
  6. Step 6: Final answer
    x = 32,021.82

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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.