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Finding the Fourth Proportional to 12,194.91, 16,828.92 and 6,605.91

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Solution

The fourth proportional to 12,194.91, 16,828.92 and 6,605.91 is: 9,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.91 : 16,828.92 = 6,605.91 : x
  2. Step 2: Convert to fraction form
    12,194.91/16,828.92 = 6,605.91/x
  3. Step 3: Cross multiply
    12,194.91x = 16,828.92 × 6,605.91
  4. Step 4: Simplify right side
    12,194.91x = 111,170,330.92
  5. Step 5: Solve for x
    x = 111,170,330.92/12,194.91
  6. Step 6: Final answer
    x = 9,116.13

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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.