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Finding the Fourth Proportional to 65,485.73, 98,229.15 and 35,887.43

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Solution

The fourth proportional to 65,485.73, 98,229.15 and 35,887.43 is: 53,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,485.73 : 98,229.15 = 35,887.43 : x
  2. Step 2: Convert to fraction form
    65,485.73/98,229.15 = 35,887.43/x
  3. Step 3: Cross multiply
    65,485.73x = 98,229.15 × 35,887.43
  4. Step 4: Simplify right side
    65,485.73x = 3,525,191,990.16
  5. Step 5: Solve for x
    x = 3,525,191,990.16/65,485.73
  6. Step 6: Final answer
    x = 53,831.45

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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.