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Finding the Fourth Proportional to 17,455.78, 26,184.24 and 6,927.76

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Solution

The fourth proportional to 17,455.78, 26,184.24 and 6,927.76 is: 10,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,455.78 : 26,184.24 = 6,927.76 : x
  2. Step 2: Convert to fraction form
    17,455.78/26,184.24 = 6,927.76/x
  3. Step 3: Cross multiply
    17,455.78x = 26,184.24 × 6,927.76
  4. Step 4: Simplify right side
    17,455.78x = 181,398,130.50
  5. Step 5: Solve for x
    x = 181,398,130.50/17,455.78
  6. Step 6: Final answer
    x = 10,391.87

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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.