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Finding the Fourth Proportional to 55,002.65, 82,490.74 and 25,392.05

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Solution

The fourth proportional to 55,002.65, 82,490.74 and 25,392.05 is: 38,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,002.65 : 82,490.74 = 25,392.05 : x
  2. Step 2: Convert to fraction form
    55,002.65/82,490.74 = 25,392.05/x
  3. Step 3: Cross multiply
    55,002.65x = 82,490.74 × 25,392.05
  4. Step 4: Simplify right side
    55,002.65x = 2,094,608,828.02
  5. Step 5: Solve for x
    x = 2,094,608,828.02/55,002.65
  6. Step 6: Final answer
    x = 38,081.97

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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.