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Finding the Fourth Proportional to 17,932.70, 26,895.45 and 8,572.70

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Solution

The fourth proportional to 17,932.70, 26,895.45 and 8,572.70 is: 12,857.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,932.70 : 26,895.45 = 8,572.70 : x
  2. Step 2: Convert to fraction form
    17,932.70/26,895.45 = 8,572.70/x
  3. Step 3: Cross multiply
    17,932.70x = 26,895.45 × 8,572.70
  4. Step 4: Simplify right side
    17,932.70x = 230,566,624.22
  5. Step 5: Solve for x
    x = 230,566,624.22/17,932.70
  6. Step 6: Final answer
    x = 12,857.33

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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.