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Finding the Fourth Proportional to 6,976.27, 9,627.93 and 3,992.53

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Solution

The fourth proportional to 6,976.27, 9,627.93 and 3,992.53 is: 5,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.27 : 9,627.93 = 3,992.53 : x
  2. Step 2: Convert to fraction form
    6,976.27/9,627.93 = 3,992.53/x
  3. Step 3: Cross multiply
    6,976.27x = 9,627.93 × 3,992.53
  4. Step 4: Simplify right side
    6,976.27x = 38,439,799.36
  5. Step 5: Solve for x
    x = 38,439,799.36/6,976.27
  6. Step 6: Final answer
    x = 5,510.08

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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.