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Finding the Fourth Proportional to 6,574.30, 9,072.17 and 3,885.64

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Solution

The fourth proportional to 6,574.30, 9,072.17 and 3,885.64 is: 5,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,574.30 : 9,072.17 = 3,885.64 : x
  2. Step 2: Convert to fraction form
    6,574.30/9,072.17 = 3,885.64/x
  3. Step 3: Cross multiply
    6,574.30x = 9,072.17 × 3,885.64
  4. Step 4: Simplify right side
    6,574.30x = 35,251,159.10
  5. Step 5: Solve for x
    x = 35,251,159.10/6,574.30
  6. Step 6: Final answer
    x = 5,361.97

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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.