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Finding the Fourth Proportional to 16,763.50, 25,145.25 and 4,451.50

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Solution

The fourth proportional to 16,763.50, 25,145.25 and 4,451.50 is: 6,677.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763.50 : 25,145.25 = 4,451.50 : x
  2. Step 2: Convert to fraction form
    16,763.50/25,145.25 = 4,451.50/x
  3. Step 3: Cross multiply
    16,763.50x = 25,145.25 × 4,451.50
  4. Step 4: Simplify right side
    16,763.50x = 111,934,080.38
  5. Step 5: Solve for x
    x = 111,934,080.38/16,763.50
  6. Step 6: Final answer
    x = 6,677.25

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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.