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Finding the Fourth Proportional to 65,912.52, 98,867.88 and 15,993

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Solution

The fourth proportional to 65,912.52, 98,867.88 and 15,993 is: 23,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,912.52 : 98,867.88 = 15,993 : x
  2. Step 2: Convert to fraction form
    65,912.52/98,867.88 = 15,993/x
  3. Step 3: Cross multiply
    65,912.52x = 98,867.88 × 15,993
  4. Step 4: Simplify right side
    65,912.52x = 1,581,194,004.84
  5. Step 5: Solve for x
    x = 1,581,194,004.84/65,912.52
  6. Step 6: Final answer
    x = 23,989.28

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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.