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Finding the Fourth Proportional to 37,964.40, 56,989.80 and 22,390.80

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Solution

The fourth proportional to 37,964.40, 56,989.80 and 22,390.80 is: 33,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,964.40 : 56,989.80 = 22,390.80 : x
  2. Step 2: Convert to fraction form
    37,964.40/56,989.80 = 22,390.80/x
  3. Step 3: Cross multiply
    37,964.40x = 56,989.80 × 22,390.80
  4. Step 4: Simplify right side
    37,964.40x = 1,276,047,213.84
  5. Step 5: Solve for x
    x = 1,276,047,213.84/37,964.40
  6. Step 6: Final answer
    x = 33,611.68

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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.