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Finding the Fourth Proportional to 69,225.88, 103,841.04 and 21,841.41

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Solution

The fourth proportional to 69,225.88, 103,841.04 and 21,841.41 is: 32,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,225.88 : 103,841.04 = 21,841.41 : x
  2. Step 2: Convert to fraction form
    69,225.88/103,841.04 = 21,841.41/x
  3. Step 3: Cross multiply
    69,225.88x = 103,841.04 × 21,841.41
  4. Step 4: Simplify right side
    69,225.88x = 2,268,034,639.84
  5. Step 5: Solve for x
    x = 2,268,034,639.84/69,225.88
  6. Step 6: Final answer
    x = 32,762.82

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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.