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Finding the Fourth Proportional to 8,409.52, 12,675.07 and 7,933.24

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Solution

The fourth proportional to 8,409.52, 12,675.07 and 7,933.24 is: 11,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.52 : 12,675.07 = 7,933.24 : x
  2. Step 2: Convert to fraction form
    8,409.52/12,675.07 = 7,933.24/x
  3. Step 3: Cross multiply
    8,409.52x = 12,675.07 × 7,933.24
  4. Step 4: Simplify right side
    8,409.52x = 100,554,372.33
  5. Step 5: Solve for x
    x = 100,554,372.33/8,409.52
  6. Step 6: Final answer
    x = 11,957.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.