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Finding the Fourth Proportional to 13,959.54, 19,246.41 and 10,179.54

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Solution

The fourth proportional to 13,959.54, 19,246.41 and 10,179.54 is: 14,034.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.54 : 19,246.41 = 10,179.54 : x
  2. Step 2: Convert to fraction form
    13,959.54/19,246.41 = 10,179.54/x
  3. Step 3: Cross multiply
    13,959.54x = 19,246.41 × 10,179.54
  4. Step 4: Simplify right side
    13,959.54x = 195,919,600.45
  5. Step 5: Solve for x
    x = 195,919,600.45/13,959.54
  6. Step 6: Final answer
    x = 14,034.82

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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.