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Finding the Fourth Proportional to 18,950.76, 28,426.14 and 7,264

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Solution

The fourth proportional to 18,950.76, 28,426.14 and 7,264 is: 10,896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.76 : 28,426.14 = 7,264 : x
  2. Step 2: Convert to fraction form
    18,950.76/28,426.14 = 7,264/x
  3. Step 3: Cross multiply
    18,950.76x = 28,426.14 × 7,264
  4. Step 4: Simplify right side
    18,950.76x = 206,487,480.96
  5. Step 5: Solve for x
    x = 206,487,480.96/18,950.76
  6. Step 6: Final answer
    x = 10,896.00

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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.