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Finding the Fourth Proportional to 52,762.72, 79,145.09 and 19,465.65

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Solution

The fourth proportional to 52,762.72, 79,145.09 and 19,465.65 is: 29,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,762.72 : 79,145.09 = 19,465.65 : x
  2. Step 2: Convert to fraction form
    52,762.72/79,145.09 = 19,465.65/x
  3. Step 3: Cross multiply
    52,762.72x = 79,145.09 × 19,465.65
  4. Step 4: Simplify right side
    52,762.72x = 1,540,610,621.16
  5. Step 5: Solve for x
    x = 1,540,610,621.16/52,762.72
  6. Step 6: Final answer
    x = 29,198.85

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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.