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Finding the Fourth Proportional to 65,906.40, 98,812.64 and 30,826.92

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Solution

The fourth proportional to 65,906.40, 98,812.64 and 30,826.92 is: 46,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,906.40 : 98,812.64 = 30,826.92 : x
  2. Step 2: Convert to fraction form
    65,906.40/98,812.64 = 30,826.92/x
  3. Step 3: Cross multiply
    65,906.40x = 98,812.64 × 30,826.92
  4. Step 4: Simplify right side
    65,906.40x = 3,046,089,348.27
  5. Step 5: Solve for x
    x = 3,046,089,348.27/65,906.40
  6. Step 6: Final answer
    x = 46,218.42

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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.