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Finding the Fourth Proportional to 69,772.61, 96,283.26 and 39,559.96

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Solution

The fourth proportional to 69,772.61, 96,283.26 and 39,559.96 is: 54,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,772.61 : 96,283.26 = 39,559.96 : x
  2. Step 2: Convert to fraction form
    69,772.61/96,283.26 = 39,559.96/x
  3. Step 3: Cross multiply
    69,772.61x = 96,283.26 × 39,559.96
  4. Step 4: Simplify right side
    69,772.61x = 3,808,961,673.56
  5. Step 5: Solve for x
    x = 3,808,961,673.56/69,772.61
  6. Step 6: Final answer
    x = 54,591.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.