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Finding the Fourth Proportional to 17,888.92, 26,814.94 and 11,661.12

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Solution

The fourth proportional to 17,888.92, 26,814.94 and 11,661.12 is: 17,479.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.92 : 26,814.94 = 11,661.12 : x
  2. Step 2: Convert to fraction form
    17,888.92/26,814.94 = 11,661.12/x
  3. Step 3: Cross multiply
    17,888.92x = 26,814.94 × 11,661.12
  4. Step 4: Simplify right side
    17,888.92x = 312,692,233.13
  5. Step 5: Solve for x
    x = 312,692,233.13/17,888.92
  6. Step 6: Final answer
    x = 17,479.66

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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.