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Finding the Fourth Proportional to 14,867, 20,515.10 and 8,152.52

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Solution

The fourth proportional to 14,867, 20,515.10 and 8,152.52 is: 11,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867 : 20,515.10 = 8,152.52 : x
  2. Step 2: Convert to fraction form
    14,867/20,515.10 = 8,152.52/x
  3. Step 3: Cross multiply
    14,867x = 20,515.10 × 8,152.52
  4. Step 4: Simplify right side
    14,867x = 167,249,763.05
  5. Step 5: Solve for x
    x = 167,249,763.05/14,867
  6. Step 6: Final answer
    x = 11,249.73

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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.