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Finding the Fourth Proportional to 3,992.36, 5,988.12 and 1,070.96

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Solution

The fourth proportional to 3,992.36, 5,988.12 and 1,070.96 is: 1,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.36 : 5,988.12 = 1,070.96 : x
  2. Step 2: Convert to fraction form
    3,992.36/5,988.12 = 1,070.96/x
  3. Step 3: Cross multiply
    3,992.36x = 5,988.12 × 1,070.96
  4. Step 4: Simplify right side
    3,992.36x = 6,413,037.00
  5. Step 5: Solve for x
    x = 6,413,037.00/3,992.36
  6. Step 6: Final answer
    x = 1,606.33

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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.