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Finding the Fourth Proportional to 14,815.01, 20,449.86 and 8,529.89

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Solution

The fourth proportional to 14,815.01, 20,449.86 and 8,529.89 is: 11,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.01 : 20,449.86 = 8,529.89 : x
  2. Step 2: Convert to fraction form
    14,815.01/20,449.86 = 8,529.89/x
  3. Step 3: Cross multiply
    14,815.01x = 20,449.86 × 8,529.89
  4. Step 4: Simplify right side
    14,815.01x = 174,434,911.42
  5. Step 5: Solve for x
    x = 174,434,911.42/14,815.01
  6. Step 6: Final answer
    x = 11,774.21

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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.