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Finding the Fourth Proportional to 65,089.28, 89,827.08 and 36,797.60

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Solution

The fourth proportional to 65,089.28, 89,827.08 and 36,797.60 is: 50,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,089.28 : 89,827.08 = 36,797.60 : x
  2. Step 2: Convert to fraction form
    65,089.28/89,827.08 = 36,797.60/x
  3. Step 3: Cross multiply
    65,089.28x = 89,827.08 × 36,797.60
  4. Step 4: Simplify right side
    65,089.28x = 3,305,420,959.01
  5. Step 5: Solve for x
    x = 3,305,420,959.01/65,089.28
  6. Step 6: Final answer
    x = 50,782.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.