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Finding the Fourth Proportional to 17,859.78, 24,640.89 and 10,305.12

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Solution

The fourth proportional to 17,859.78, 24,640.89 and 10,305.12 is: 14,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.78 : 24,640.89 = 10,305.12 : x
  2. Step 2: Convert to fraction form
    17,859.78/24,640.89 = 10,305.12/x
  3. Step 3: Cross multiply
    17,859.78x = 24,640.89 × 10,305.12
  4. Step 4: Simplify right side
    17,859.78x = 253,927,328.36
  5. Step 5: Solve for x
    x = 253,927,328.36/17,859.78
  6. Step 6: Final answer
    x = 14,217.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.