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Finding the Fourth Proportional to 69,225.99, 103,841.22 and 21,841.52

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Solution

The fourth proportional to 69,225.99, 103,841.22 and 21,841.52 is: 32,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,225.99 : 103,841.22 = 21,841.52 : x
  2. Step 2: Convert to fraction form
    69,225.99/103,841.22 = 21,841.52/x
  3. Step 3: Cross multiply
    69,225.99x = 103,841.22 × 21,841.52
  4. Step 4: Simplify right side
    69,225.99x = 2,268,049,646.15
  5. Step 5: Solve for x
    x = 2,268,049,646.15/69,225.99
  6. Step 6: Final answer
    x = 32,762.98

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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.