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Finding the Fourth Proportional to 49,225.70, 73,729.20 and 42,664.70

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Solution

The fourth proportional to 49,225.70, 73,729.20 and 42,664.70 is: 63,902.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,225.70 : 73,729.20 = 42,664.70 : x
  2. Step 2: Convert to fraction form
    49,225.70/73,729.20 = 42,664.70/x
  3. Step 3: Cross multiply
    49,225.70x = 73,729.20 × 42,664.70
  4. Step 4: Simplify right side
    49,225.70x = 3,145,634,199.24
  5. Step 5: Solve for x
    x = 3,145,634,199.24/49,225.70
  6. Step 6: Final answer
    x = 63,902.27

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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.