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Finding the Fourth Proportional to 79,211.54, 118,824.62 and 25,903.80

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Solution

The fourth proportional to 79,211.54, 118,824.62 and 25,903.80 is: 38,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211.54 : 118,824.62 = 25,903.80 : x
  2. Step 2: Convert to fraction form
    79,211.54/118,824.62 = 25,903.80/x
  3. Step 3: Cross multiply
    79,211.54x = 118,824.62 × 25,903.80
  4. Step 4: Simplify right side
    79,211.54x = 3,078,009,062.04
  5. Step 5: Solve for x
    x = 3,078,009,062.04/79,211.54
  6. Step 6: Final answer
    x = 38,858.09

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1.5x scale

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.