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Finding the Fourth Proportional to 17,733, 26,599.86 and 5,421

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Solution

The fourth proportional to 17,733, 26,599.86 and 5,421 is: 8,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,733 : 26,599.86 = 5,421 : x
  2. Step 2: Convert to fraction form
    17,733/26,599.86 = 5,421/x
  3. Step 3: Cross multiply
    17,733x = 26,599.86 × 5,421
  4. Step 4: Simplify right side
    17,733x = 144,197,841.06
  5. Step 5: Solve for x
    x = 144,197,841.06/17,733
  6. Step 6: Final answer
    x = 8,131.61

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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.