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Finding the Fourth Proportional to 18,760.50, 25,889.49 and 10,377

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Solution

The fourth proportional to 18,760.50, 25,889.49 and 10,377 is: 14,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.50 : 25,889.49 = 10,377 : x
  2. Step 2: Convert to fraction form
    18,760.50/25,889.49 = 10,377/x
  3. Step 3: Cross multiply
    18,760.50x = 25,889.49 × 10,377
  4. Step 4: Simplify right side
    18,760.50x = 268,655,237.73
  5. Step 5: Solve for x
    x = 268,655,237.73/18,760.50
  6. Step 6: Final answer
    x = 14,320.26

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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.