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Finding the Fourth Proportional to 58,079.70, 87,126.03 and 18,622.98

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Solution

The fourth proportional to 58,079.70, 87,126.03 and 18,622.98 is: 27,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,079.70 : 87,126.03 = 18,622.98 : x
  2. Step 2: Convert to fraction form
    58,079.70/87,126.03 = 18,622.98/x
  3. Step 3: Cross multiply
    58,079.70x = 87,126.03 × 18,622.98
  4. Step 4: Simplify right side
    58,079.70x = 1,622,546,314.17
  5. Step 5: Solve for x
    x = 1,622,546,314.17/58,079.70
  6. Step 6: Final answer
    x = 27,936.55

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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.