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Finding the Fourth Proportional to 69,772.68, 104,668.74 and 25,391.16

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Solution

The fourth proportional to 69,772.68, 104,668.74 and 25,391.16 is: 38,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,772.68 : 104,668.74 = 25,391.16 : x
  2. Step 2: Convert to fraction form
    69,772.68/104,668.74 = 25,391.16/x
  3. Step 3: Cross multiply
    69,772.68x = 104,668.74 × 25,391.16
  4. Step 4: Simplify right side
    69,772.68x = 2,657,660,724.34
  5. Step 5: Solve for x
    x = 2,657,660,724.34/69,772.68
  6. Step 6: Final answer
    x = 38,090.28

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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.