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Finding the Fourth Proportional to 14,874.69, 20,525.61 and 8,906.23

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Solution

The fourth proportional to 14,874.69, 20,525.61 and 8,906.23 is: 12,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874.69 : 20,525.61 = 8,906.23 : x
  2. Step 2: Convert to fraction form
    14,874.69/20,525.61 = 8,906.23/x
  3. Step 3: Cross multiply
    14,874.69x = 20,525.61 × 8,906.23
  4. Step 4: Simplify right side
    14,874.69x = 182,805,803.55
  5. Step 5: Solve for x
    x = 182,805,803.55/14,874.69
  6. Step 6: Final answer
    x = 12,289.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.