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Finding the Fourth Proportional to 13,573.71, 20,343.56 and 7,336.71

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Solution

The fourth proportional to 13,573.71, 20,343.56 and 7,336.71 is: 10,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.71 : 20,343.56 = 7,336.71 : x
  2. Step 2: Convert to fraction form
    13,573.71/20,343.56 = 7,336.71/x
  3. Step 3: Cross multiply
    13,573.71x = 20,343.56 × 7,336.71
  4. Step 4: Simplify right side
    13,573.71x = 149,254,763.40
  5. Step 5: Solve for x
    x = 149,254,763.40/13,573.71
  6. Step 6: Final answer
    x = 10,995.87

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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.