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Finding the Fourth Proportional to 18,959.46, 26,163.88 and 10,461.66

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Solution

The fourth proportional to 18,959.46, 26,163.88 and 10,461.66 is: 14,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.46 : 26,163.88 = 10,461.66 : x
  2. Step 2: Convert to fraction form
    18,959.46/26,163.88 = 10,461.66/x
  3. Step 3: Cross multiply
    18,959.46x = 26,163.88 × 10,461.66
  4. Step 4: Simplify right side
    18,959.46x = 273,717,616.84
  5. Step 5: Solve for x
    x = 273,717,616.84/18,959.46
  6. Step 6: Final answer
    x = 14,436.99

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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.