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Finding the Fourth Proportional to 14,998.64, 20,701.02 and 8,629.52

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Solution

The fourth proportional to 14,998.64, 20,701.02 and 8,629.52 is: 11,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998.64 : 20,701.02 = 8,629.52 : x
  2. Step 2: Convert to fraction form
    14,998.64/20,701.02 = 8,629.52/x
  3. Step 3: Cross multiply
    14,998.64x = 20,701.02 × 8,629.52
  4. Step 4: Simplify right side
    14,998.64x = 178,639,866.11
  5. Step 5: Solve for x
    x = 178,639,866.11/14,998.64
  6. Step 6: Final answer
    x = 11,910.40

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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.