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Finding the Fourth Proportional to 49,136.64, 73,733.53 and 20,671.50

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Solution

The fourth proportional to 49,136.64, 73,733.53 and 20,671.50 is: 31,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,136.64 : 73,733.53 = 20,671.50 : x
  2. Step 2: Convert to fraction form
    49,136.64/73,733.53 = 20,671.50/x
  3. Step 3: Cross multiply
    49,136.64x = 73,733.53 × 20,671.50
  4. Step 4: Simplify right side
    49,136.64x = 1,524,182,899.91
  5. Step 5: Solve for x
    x = 1,524,182,899.91/49,136.64
  6. Step 6: Final answer
    x = 31,019.28

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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.