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Finding the Fourth Proportional to 14,874.56, 20,525.58 and 8,499.89

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Solution

The fourth proportional to 14,874.56, 20,525.58 and 8,499.89 is: 11,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874.56 : 20,525.58 = 8,499.89 : x
  2. Step 2: Convert to fraction form
    14,874.56/20,525.58 = 8,499.89/x
  3. Step 3: Cross multiply
    14,874.56x = 20,525.58 × 8,499.89
  4. Step 4: Simplify right side
    14,874.56x = 174,465,101.43
  5. Step 5: Solve for x
    x = 174,465,101.43/14,874.56
  6. Step 6: Final answer
    x = 11,729.09

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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.