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Finding the Fourth Proportional to 69,004.20, 103,480.70 and 27,442.60

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Solution

The fourth proportional to 69,004.20, 103,480.70 and 27,442.60 is: 41,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,004.20 : 103,480.70 = 27,442.60 : x
  2. Step 2: Convert to fraction form
    69,004.20/103,480.70 = 27,442.60/x
  3. Step 3: Cross multiply
    69,004.20x = 103,480.70 × 27,442.60
  4. Step 4: Simplify right side
    69,004.20x = 2,839,779,457.82
  5. Step 5: Solve for x
    x = 2,839,779,457.82/69,004.20
  6. Step 6: Final answer
    x = 41,153.72

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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.