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Finding the Fourth Proportional to 6,791.47, 9,374.52 and 4,277.79

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Solution

The fourth proportional to 6,791.47, 9,374.52 and 4,277.79 is: 5,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.47 : 9,374.52 = 4,277.79 : x
  2. Step 2: Convert to fraction form
    6,791.47/9,374.52 = 4,277.79/x
  3. Step 3: Cross multiply
    6,791.47x = 9,374.52 × 4,277.79
  4. Step 4: Simplify right side
    6,791.47x = 40,102,227.91
  5. Step 5: Solve for x
    x = 40,102,227.91/6,791.47
  6. Step 6: Final answer
    x = 5,904.79

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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.