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Finding the Fourth Proportional to 17,216.78, 25,839.02 and 8,899.23

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Solution

The fourth proportional to 17,216.78, 25,839.02 and 8,899.23 is: 13,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,216.78 : 25,839.02 = 8,899.23 : x
  2. Step 2: Convert to fraction form
    17,216.78/25,839.02 = 8,899.23/x
  3. Step 3: Cross multiply
    17,216.78x = 25,839.02 × 8,899.23
  4. Step 4: Simplify right side
    17,216.78x = 229,947,337.46
  5. Step 5: Solve for x
    x = 229,947,337.46/17,216.78
  6. Step 6: Final answer
    x = 13,356.00

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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.