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Finding the Fourth Proportional to 28,353.69, 42,532.97 and 8,632.44

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Solution

The fourth proportional to 28,353.69, 42,532.97 and 8,632.44 is: 12,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.69 : 42,532.97 = 8,632.44 : x
  2. Step 2: Convert to fraction form
    28,353.69/42,532.97 = 8,632.44/x
  3. Step 3: Cross multiply
    28,353.69x = 42,532.97 × 8,632.44
  4. Step 4: Simplify right side
    28,353.69x = 367,163,268.38
  5. Step 5: Solve for x
    x = 367,163,268.38/28,353.69
  6. Step 6: Final answer
    x = 12,949.40

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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.