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Finding the Fourth Proportional to 18,516.50, 25,552.77 and 10,133

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Solution

The fourth proportional to 18,516.50, 25,552.77 and 10,133 is: 13,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.50 : 25,552.77 = 10,133 : x
  2. Step 2: Convert to fraction form
    18,516.50/25,552.77 = 10,133/x
  3. Step 3: Cross multiply
    18,516.50x = 25,552.77 × 10,133
  4. Step 4: Simplify right side
    18,516.50x = 258,926,218.41
  5. Step 5: Solve for x
    x = 258,926,218.41/18,516.50
  6. Step 6: Final answer
    x = 13,983.54

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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.