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Finding the Fourth Proportional to 53,553.62, 80,274.72 and 17,988.54

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Solution

The fourth proportional to 53,553.62, 80,274.72 and 17,988.54 is: 26,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,553.62 : 80,274.72 = 17,988.54 : x
  2. Step 2: Convert to fraction form
    53,553.62/80,274.72 = 17,988.54/x
  3. Step 3: Cross multiply
    53,553.62x = 80,274.72 × 17,988.54
  4. Step 4: Simplify right side
    53,553.62x = 1,444,025,011.71
  5. Step 5: Solve for x
    x = 1,444,025,011.71/53,553.62
  6. Step 6: Final answer
    x = 26,964.10

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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.