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Finding the Fourth Proportional to 14,447.92, 21,654.60 and 5,208.88

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Solution

The fourth proportional to 14,447.92, 21,654.60 and 5,208.88 is: 7,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.92 : 21,654.60 = 5,208.88 : x
  2. Step 2: Convert to fraction form
    14,447.92/21,654.60 = 5,208.88/x
  3. Step 3: Cross multiply
    14,447.92x = 21,654.60 × 5,208.88
  4. Step 4: Simplify right side
    14,447.92x = 112,796,212.85
  5. Step 5: Solve for x
    x = 112,796,212.85/14,447.92
  6. Step 6: Final answer
    x = 7,807.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.