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Finding the Fourth Proportional to 18,951, 26,152.05 and 10,453.95

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Solution

The fourth proportional to 18,951, 26,152.05 and 10,453.95 is: 14,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951 : 26,152.05 = 10,453.95 : x
  2. Step 2: Convert to fraction form
    18,951/26,152.05 = 10,453.95/x
  3. Step 3: Cross multiply
    18,951x = 26,152.05 × 10,453.95
  4. Step 4: Simplify right side
    18,951x = 273,392,223.10
  5. Step 5: Solve for x
    x = 273,392,223.10/18,951
  6. Step 6: Final answer
    x = 14,426.27

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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.