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Finding the Fourth Proportional to 58,486.70, 87,741.90 and 19,033.22

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Solution

The fourth proportional to 58,486.70, 87,741.90 and 19,033.22 is: 28,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,486.70 : 87,741.90 = 19,033.22 : x
  2. Step 2: Convert to fraction form
    58,486.70/87,741.90 = 19,033.22/x
  3. Step 3: Cross multiply
    58,486.70x = 87,741.90 × 19,033.22
  4. Step 4: Simplify right side
    58,486.70x = 1,670,011,105.27
  5. Step 5: Solve for x
    x = 1,670,011,105.27/58,486.70
  6. Step 6: Final answer
    x = 28,553.69

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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.