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Finding the Fourth Proportional to 18,632.70, 27,900.45 and 14,712.30

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Solution

The fourth proportional to 18,632.70, 27,900.45 and 14,712.30 is: 22,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.70 : 27,900.45 = 14,712.30 : x
  2. Step 2: Convert to fraction form
    18,632.70/27,900.45 = 14,712.30/x
  3. Step 3: Cross multiply
    18,632.70x = 27,900.45 × 14,712.30
  4. Step 4: Simplify right side
    18,632.70x = 410,479,790.54
  5. Step 5: Solve for x
    x = 410,479,790.54/18,632.70
  6. Step 6: Final answer
    x = 22,030.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.