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Finding the Fourth Proportional to 6,791.66, 9,374.52 and 4,140.38

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Solution

The fourth proportional to 6,791.66, 9,374.52 and 4,140.38 is: 5,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.66 : 9,374.52 = 4,140.38 : x
  2. Step 2: Convert to fraction form
    6,791.66/9,374.52 = 4,140.38/x
  3. Step 3: Cross multiply
    6,791.66x = 9,374.52 × 4,140.38
  4. Step 4: Simplify right side
    6,791.66x = 38,814,075.12
  5. Step 5: Solve for x
    x = 38,814,075.12/6,791.66
  6. Step 6: Final answer
    x = 5,714.96

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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.