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Finding the Fourth Proportional to 22,855.44, 34,280.64 and 7,274.28

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Solution

The fourth proportional to 22,855.44, 34,280.64 and 7,274.28 is: 10,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,855.44 : 34,280.64 = 7,274.28 : x
  2. Step 2: Convert to fraction form
    22,855.44/34,280.64 = 7,274.28/x
  3. Step 3: Cross multiply
    22,855.44x = 34,280.64 × 7,274.28
  4. Step 4: Simplify right side
    22,855.44x = 249,366,973.94
  5. Step 5: Solve for x
    x = 249,366,973.94/22,855.44
  6. Step 6: Final answer
    x = 10,910.62

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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.