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Finding the Fourth Proportional to 6,751.80, 10,124.10 and 2,851.80

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Solution

The fourth proportional to 6,751.80, 10,124.10 and 2,851.80 is: 4,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.80 : 10,124.10 = 2,851.80 : x
  2. Step 2: Convert to fraction form
    6,751.80/10,124.10 = 2,851.80/x
  3. Step 3: Cross multiply
    6,751.80x = 10,124.10 × 2,851.80
  4. Step 4: Simplify right side
    6,751.80x = 28,871,908.38
  5. Step 5: Solve for x
    x = 28,871,908.38/6,751.80
  6. Step 6: Final answer
    x = 4,276.18

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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.