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Finding the Fourth Proportional to 17,676.88, 26,513.93 and 10,276.61

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Solution

The fourth proportional to 17,676.88, 26,513.93 and 10,276.61 is: 15,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,676.88 : 26,513.93 = 10,276.61 : x
  2. Step 2: Convert to fraction form
    17,676.88/26,513.93 = 10,276.61/x
  3. Step 3: Cross multiply
    17,676.88x = 26,513.93 × 10,276.61
  4. Step 4: Simplify right side
    17,676.88x = 272,473,266.79
  5. Step 5: Solve for x
    x = 272,473,266.79/17,676.88
  6. Step 6: Final answer
    x = 15,414.11

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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.