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Finding the Fourth Proportional to 17,966.70, 26,953.02 and 8,105.76

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Solution

The fourth proportional to 17,966.70, 26,953.02 and 8,105.76 is: 12,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,966.70 : 26,953.02 = 8,105.76 : x
  2. Step 2: Convert to fraction form
    17,966.70/26,953.02 = 8,105.76/x
  3. Step 3: Cross multiply
    17,966.70x = 26,953.02 × 8,105.76
  4. Step 4: Simplify right side
    17,966.70x = 218,474,711.40
  5. Step 5: Solve for x
    x = 218,474,711.40/17,966.70
  6. Step 6: Final answer
    x = 12,159.98

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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.