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Finding the Fourth Proportional to 65,903.40, 98,835.90 and 23,778.60

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Solution

The fourth proportional to 65,903.40, 98,835.90 and 23,778.60 is: 35,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,903.40 : 98,835.90 = 23,778.60 : x
  2. Step 2: Convert to fraction form
    65,903.40/98,835.90 = 23,778.60/x
  3. Step 3: Cross multiply
    65,903.40x = 98,835.90 × 23,778.60
  4. Step 4: Simplify right side
    65,903.40x = 2,350,179,331.74
  5. Step 5: Solve for x
    x = 2,350,179,331.74/65,903.40
  6. Step 6: Final answer
    x = 35,660.97

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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.