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Finding the Fourth Proportional to 49,219.80, 73,829.70 and 48,782.40

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Solution

The fourth proportional to 49,219.80, 73,829.70 and 48,782.40 is: 73,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,219.80 : 73,829.70 = 48,782.40 : x
  2. Step 2: Convert to fraction form
    49,219.80/73,829.70 = 48,782.40/x
  3. Step 3: Cross multiply
    49,219.80x = 73,829.70 × 48,782.40
  4. Step 4: Simplify right side
    49,219.80x = 3,601,589,957.28
  5. Step 5: Solve for x
    x = 3,601,589,957.28/49,219.80
  6. Step 6: Final answer
    x = 73,173.60

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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.