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Finding the Fourth Proportional to 20,371.46, 30,696.02 and 16,754.72

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Solution

The fourth proportional to 20,371.46, 30,696.02 and 16,754.72 is: 25,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.46 : 30,696.02 = 16,754.72 : x
  2. Step 2: Convert to fraction form
    20,371.46/30,696.02 = 16,754.72/x
  3. Step 3: Cross multiply
    20,371.46x = 30,696.02 × 16,754.72
  4. Step 4: Simplify right side
    20,371.46x = 514,303,220.21
  5. Step 5: Solve for x
    x = 514,303,220.21/20,371.46
  6. Step 6: Final answer
    x = 25,246.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.