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Finding the Fourth Proportional to 17,817.32, 26,726.66 and 7,956.68

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Solution

The fourth proportional to 17,817.32, 26,726.66 and 7,956.68 is: 11,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817.32 : 26,726.66 = 7,956.68 : x
  2. Step 2: Convert to fraction form
    17,817.32/26,726.66 = 7,956.68/x
  3. Step 3: Cross multiply
    17,817.32x = 26,726.66 × 7,956.68
  4. Step 4: Simplify right side
    17,817.32x = 212,655,487.85
  5. Step 5: Solve for x
    x = 212,655,487.85/17,817.32
  6. Step 6: Final answer
    x = 11,935.33

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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.