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Finding the Fourth Proportional to 13,341.27, 18,414.79 and 8,807.27

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Solution

The fourth proportional to 13,341.27, 18,414.79 and 8,807.27 is: 12,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.27 : 18,414.79 = 8,807.27 : x
  2. Step 2: Convert to fraction form
    13,341.27/18,414.79 = 8,807.27/x
  3. Step 3: Cross multiply
    13,341.27x = 18,414.79 × 8,807.27
  4. Step 4: Simplify right side
    13,341.27x = 162,183,962.97
  5. Step 5: Solve for x
    x = 162,183,962.97/13,341.27
  6. Step 6: Final answer
    x = 12,156.56

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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.