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Finding the Fourth Proportional to 6,791.28, 9,373.28 and 4,429.32

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Solution

The fourth proportional to 6,791.28, 9,373.28 and 4,429.32 is: 6,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.28 : 9,373.28 = 4,429.32 : x
  2. Step 2: Convert to fraction form
    6,791.28/9,373.28 = 4,429.32/x
  3. Step 3: Cross multiply
    6,791.28x = 9,373.28 × 4,429.32
  4. Step 4: Simplify right side
    6,791.28x = 41,517,256.57
  5. Step 5: Solve for x
    x = 41,517,256.57/6,791.28
  6. Step 6: Final answer
    x = 6,113.32

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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.