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Finding the Fourth Proportional to 7,791.72, 10,752.51 and 4,254.93

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Solution

The fourth proportional to 7,791.72, 10,752.51 and 4,254.93 is: 5,871.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.72 : 10,752.51 = 4,254.93 : x
  2. Step 2: Convert to fraction form
    7,791.72/10,752.51 = 4,254.93/x
  3. Step 3: Cross multiply
    7,791.72x = 10,752.51 × 4,254.93
  4. Step 4: Simplify right side
    7,791.72x = 45,751,177.37
  5. Step 5: Solve for x
    x = 45,751,177.37/7,791.72
  6. Step 6: Final answer
    x = 5,871.77

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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.