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Finding the Fourth Proportional to 58,077.69, 87,127.88 and 18,631.77

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Solution

The fourth proportional to 58,077.69, 87,127.88 and 18,631.77 is: 27,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,077.69 : 87,127.88 = 18,631.77 : x
  2. Step 2: Convert to fraction form
    58,077.69/87,127.88 = 18,631.77/x
  3. Step 3: Cross multiply
    58,077.69x = 87,127.88 × 18,631.77
  4. Step 4: Simplify right side
    58,077.69x = 1,623,346,527.59
  5. Step 5: Solve for x
    x = 1,623,346,527.59/58,077.69
  6. Step 6: Final answer
    x = 27,951.29

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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.