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Finding the Fourth Proportional to 48,197.92, 72,296.88 and 13,136.80

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Solution

The fourth proportional to 48,197.92, 72,296.88 and 13,136.80 is: 19,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,197.92 : 72,296.88 = 13,136.80 : x
  2. Step 2: Convert to fraction form
    48,197.92/72,296.88 = 13,136.80/x
  3. Step 3: Cross multiply
    48,197.92x = 72,296.88 × 13,136.80
  4. Step 4: Simplify right side
    48,197.92x = 949,749,653.18
  5. Step 5: Solve for x
    x = 949,749,653.18/48,197.92
  6. Step 6: Final answer
    x = 19,705.20

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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.