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Finding the Fourth Proportional to 28,244.55, 42,367.92 and 8,523.11

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Solution

The fourth proportional to 28,244.55, 42,367.92 and 8,523.11 is: 12,784.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.55 : 42,367.92 = 8,523.11 : x
  2. Step 2: Convert to fraction form
    28,244.55/42,367.92 = 8,523.11/x
  3. Step 3: Cross multiply
    28,244.55x = 42,367.92 × 8,523.11
  4. Step 4: Simplify right side
    28,244.55x = 361,106,230.79
  5. Step 5: Solve for x
    x = 361,106,230.79/28,244.55
  6. Step 6: Final answer
    x = 12,784.99

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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.