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Finding the Fourth Proportional to 65,504.79, 98,256.87 and 18,757.71

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Solution

The fourth proportional to 65,504.79, 98,256.87 and 18,757.71 is: 28,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,504.79 : 98,256.87 = 18,757.71 : x
  2. Step 2: Convert to fraction form
    65,504.79/98,256.87 = 18,757.71/x
  3. Step 3: Cross multiply
    65,504.79x = 98,256.87 × 18,757.71
  4. Step 4: Simplify right side
    65,504.79x = 1,843,073,872.97
  5. Step 5: Solve for x
    x = 1,843,073,872.97/65,504.79
  6. Step 6: Final answer
    x = 28,136.47

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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.