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Finding the Fourth Proportional to 26,961.30, 40,477.80 and 17,486.82

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Solution

The fourth proportional to 26,961.30, 40,477.80 and 17,486.82 is: 26,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,961.30 : 40,477.80 = 17,486.82 : x
  2. Step 2: Convert to fraction form
    26,961.30/40,477.80 = 17,486.82/x
  3. Step 3: Cross multiply
    26,961.30x = 40,477.80 × 17,486.82
  4. Step 4: Simplify right side
    26,961.30x = 707,828,002.60
  5. Step 5: Solve for x
    x = 707,828,002.60/26,961.30
  6. Step 6: Final answer
    x = 26,253.48

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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.