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Finding the Fourth Proportional to 17,767.30, 26,625.03 and 9,978.34

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Solution

The fourth proportional to 17,767.30, 26,625.03 and 9,978.34 is: 14,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,767.30 : 26,625.03 = 9,978.34 : x
  2. Step 2: Convert to fraction form
    17,767.30/26,625.03 = 9,978.34/x
  3. Step 3: Cross multiply
    17,767.30x = 26,625.03 × 9,978.34
  4. Step 4: Simplify right side
    17,767.30x = 265,673,601.85
  5. Step 5: Solve for x
    x = 265,673,601.85/17,767.30
  6. Step 6: Final answer
    x = 14,952.95

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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.