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Finding the Fourth Proportional to 69,013.10, 103,483.20 and 29,525.60

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Solution

The fourth proportional to 69,013.10, 103,483.20 and 29,525.60 is: 44,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,013.10 : 103,483.20 = 29,525.60 : x
  2. Step 2: Convert to fraction form
    69,013.10/103,483.20 = 29,525.60/x
  3. Step 3: Cross multiply
    69,013.10x = 103,483.20 × 29,525.60
  4. Step 4: Simplify right side
    69,013.10x = 3,055,403,569.92
  5. Step 5: Solve for x
    x = 3,055,403,569.92/69,013.10
  6. Step 6: Final answer
    x = 44,272.81

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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.