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Finding the Fourth Proportional to 58,092.62, 87,130.70 and 18,644.63

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Solution

The fourth proportional to 58,092.62, 87,130.70 and 18,644.63 is: 27,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,092.62 : 87,130.70 = 18,644.63 : x
  2. Step 2: Convert to fraction form
    58,092.62/87,130.70 = 18,644.63/x
  3. Step 3: Cross multiply
    58,092.62x = 87,130.70 × 18,644.63
  4. Step 4: Simplify right side
    58,092.62x = 1,624,519,569.92
  5. Step 5: Solve for x
    x = 1,624,519,569.92/58,092.62
  6. Step 6: Final answer
    x = 27,964.30

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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.