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Finding the Fourth Proportional to 14,863.64, 20,518.37 and 10,404.89

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Solution

The fourth proportional to 14,863.64, 20,518.37 and 10,404.89 is: 14,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.64 : 20,518.37 = 10,404.89 : x
  2. Step 2: Convert to fraction form
    14,863.64/20,518.37 = 10,404.89/x
  3. Step 3: Cross multiply
    14,863.64x = 20,518.37 × 10,404.89
  4. Step 4: Simplify right side
    14,863.64x = 213,491,228.21
  5. Step 5: Solve for x
    x = 213,491,228.21/14,863.64
  6. Step 6: Final answer
    x = 14,363.33

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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.