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Finding the Fourth Proportional to 7,791.14, 10,751.80 and 4,254.58

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Solution

The fourth proportional to 7,791.14, 10,751.80 and 4,254.58 is: 5,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.14 : 10,751.80 = 4,254.58 : x
  2. Step 2: Convert to fraction form
    7,791.14/10,751.80 = 4,254.58/x
  3. Step 3: Cross multiply
    7,791.14x = 10,751.80 × 4,254.58
  4. Step 4: Simplify right side
    7,791.14x = 45,744,393.24
  5. Step 5: Solve for x
    x = 45,744,393.24/7,791.14
  6. Step 6: Final answer
    x = 5,871.34

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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.