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Finding the Fourth Proportional to 18,163.80, 25,065.27 and 10,610.55

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Solution

The fourth proportional to 18,163.80, 25,065.27 and 10,610.55 is: 14,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.80 : 25,065.27 = 10,610.55 : x
  2. Step 2: Convert to fraction form
    18,163.80/25,065.27 = 10,610.55/x
  3. Step 3: Cross multiply
    18,163.80x = 25,065.27 × 10,610.55
  4. Step 4: Simplify right side
    18,163.80x = 265,956,300.60
  5. Step 5: Solve for x
    x = 265,956,300.60/18,163.80
  6. Step 6: Final answer
    x = 14,642.11

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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.