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Finding the Fourth Proportional to 54,838.93, 82,260.08 and 18,814.88

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Solution

The fourth proportional to 54,838.93, 82,260.08 and 18,814.88 is: 28,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,838.93 : 82,260.08 = 18,814.88 : x
  2. Step 2: Convert to fraction form
    54,838.93/82,260.08 = 18,814.88/x
  3. Step 3: Cross multiply
    54,838.93x = 82,260.08 × 18,814.88
  4. Step 4: Simplify right side
    54,838.93x = 1,547,713,439.92
  5. Step 5: Solve for x
    x = 1,547,713,439.92/54,838.93
  6. Step 6: Final answer
    x = 28,222.90

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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.