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Finding the Fourth Proportional to 17,774.13, 26,661.06 and 7,385.88

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Solution

The fourth proportional to 17,774.13, 26,661.06 and 7,385.88 is: 11,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,774.13 : 26,661.06 = 7,385.88 : x
  2. Step 2: Convert to fraction form
    17,774.13/26,661.06 = 7,385.88/x
  3. Step 3: Cross multiply
    17,774.13x = 26,661.06 × 7,385.88
  4. Step 4: Simplify right side
    17,774.13x = 196,915,389.83
  5. Step 5: Solve for x
    x = 196,915,389.83/17,774.13
  6. Step 6: Final answer
    x = 11,078.76

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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.