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Finding the Fourth Proportional to 7,791.49, 10,751.83 and 4,254.62

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Solution

The fourth proportional to 7,791.49, 10,751.83 and 4,254.62 is: 5,871.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.49 : 10,751.83 = 4,254.62 : x
  2. Step 2: Convert to fraction form
    7,791.49/10,751.83 = 4,254.62/x
  3. Step 3: Cross multiply
    7,791.49x = 10,751.83 × 4,254.62
  4. Step 4: Simplify right side
    7,791.49x = 45,744,950.95
  5. Step 5: Solve for x
    x = 45,744,950.95/7,791.49
  6. Step 6: Final answer
    x = 5,871.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.