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Finding the Fourth Proportional to 69,765.71, 104,676.55 and 25,395.53

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Solution

The fourth proportional to 69,765.71, 104,676.55 and 25,395.53 is: 38,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,765.71 : 104,676.55 = 25,395.53 : x
  2. Step 2: Convert to fraction form
    69,765.71/104,676.55 = 25,395.53/x
  3. Step 3: Cross multiply
    69,765.71x = 104,676.55 × 25,395.53
  4. Step 4: Simplify right side
    69,765.71x = 2,658,315,878.95
  5. Step 5: Solve for x
    x = 2,658,315,878.95/69,765.71
  6. Step 6: Final answer
    x = 38,103.48

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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.