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Finding the Fourth Proportional to 6,678.88, 10,007.24 and 3,554.48

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Solution

The fourth proportional to 6,678.88, 10,007.24 and 3,554.48 is: 5,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.88 : 10,007.24 = 3,554.48 : x
  2. Step 2: Convert to fraction form
    6,678.88/10,007.24 = 3,554.48/x
  3. Step 3: Cross multiply
    6,678.88x = 10,007.24 × 3,554.48
  4. Step 4: Simplify right side
    6,678.88x = 35,570,534.44
  5. Step 5: Solve for x
    x = 35,570,534.44/6,678.88
  6. Step 6: Final answer
    x = 5,325.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.