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Finding the Fourth Proportional to 16,930.91, 23,363.91 and 9,376.74

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Solution

The fourth proportional to 16,930.91, 23,363.91 and 9,376.74 is: 12,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930.91 : 23,363.91 = 9,376.74 : x
  2. Step 2: Convert to fraction form
    16,930.91/23,363.91 = 9,376.74/x
  3. Step 3: Cross multiply
    16,930.91x = 23,363.91 × 9,376.74
  4. Step 4: Simplify right side
    16,930.91x = 219,077,309.45
  5. Step 5: Solve for x
    x = 219,077,309.45/16,930.91
  6. Step 6: Final answer
    x = 12,939.49

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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.