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Finding the Fourth Proportional to 22,995.80, 34,493.70 and 20,384.60

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Solution

The fourth proportional to 22,995.80, 34,493.70 and 20,384.60 is: 30,576.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,995.80 : 34,493.70 = 20,384.60 : x
  2. Step 2: Convert to fraction form
    22,995.80/34,493.70 = 20,384.60/x
  3. Step 3: Cross multiply
    22,995.80x = 34,493.70 × 20,384.60
  4. Step 4: Simplify right side
    22,995.80x = 703,140,277.02
  5. Step 5: Solve for x
    x = 703,140,277.02/22,995.80
  6. Step 6: Final answer
    x = 30,576.90

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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.