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Finding the Fourth Proportional to 10,661.02, 15,992.51 and 2,763.52

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Solution

The fourth proportional to 10,661.02, 15,992.51 and 2,763.52 is: 4,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.02 : 15,992.51 = 2,763.52 : x
  2. Step 2: Convert to fraction form
    10,661.02/15,992.51 = 2,763.52/x
  3. Step 3: Cross multiply
    10,661.02x = 15,992.51 × 2,763.52
  4. Step 4: Simplify right side
    10,661.02x = 44,195,567.44
  5. Step 5: Solve for x
    x = 44,195,567.44/10,661.02
  6. Step 6: Final answer
    x = 4,145.53

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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.