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Finding the Fourth Proportional to 14,807.22, 20,434.46 and 8,519.60

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Solution

The fourth proportional to 14,807.22, 20,434.46 and 8,519.60 is: 11,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,807.22 : 20,434.46 = 8,519.60 : x
  2. Step 2: Convert to fraction form
    14,807.22/20,434.46 = 8,519.60/x
  3. Step 3: Cross multiply
    14,807.22x = 20,434.46 × 8,519.60
  4. Step 4: Simplify right side
    14,807.22x = 174,093,280.65
  5. Step 5: Solve for x
    x = 174,093,280.65/14,807.22
  6. Step 6: Final answer
    x = 11,757.32

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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.