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Finding the Fourth Proportional to 18,253.79, 27,373.99 and 8,891.00

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Solution

The fourth proportional to 18,253.79, 27,373.99 and 8,891.00 is: 13,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.79 : 27,373.99 = 8,891.00 : x
  2. Step 2: Convert to fraction form
    18,253.79/27,373.99 = 8,891.00/x
  3. Step 3: Cross multiply
    18,253.79x = 27,373.99 × 8,891.00
  4. Step 4: Simplify right side
    18,253.79x = 243,382,008.22
  5. Step 5: Solve for x
    x = 243,382,008.22/18,253.79
  6. Step 6: Final answer
    x = 13,333.24

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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.