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Finding the Fourth Proportional to 17,860.56, 26,790.57 and 7,472.31

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Solution

The fourth proportional to 17,860.56, 26,790.57 and 7,472.31 is: 11,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,860.56 : 26,790.57 = 7,472.31 : x
  2. Step 2: Convert to fraction form
    17,860.56/26,790.57 = 7,472.31/x
  3. Step 3: Cross multiply
    17,860.56x = 26,790.57 × 7,472.31
  4. Step 4: Simplify right side
    17,860.56x = 200,187,444.12
  5. Step 5: Solve for x
    x = 200,187,444.12/17,860.56
  6. Step 6: Final answer
    x = 11,208.35

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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.