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Finding the Fourth Proportional to 58,667.19, 87,991.88 and 19,223.43

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Solution

The fourth proportional to 58,667.19, 87,991.88 and 19,223.43 is: 28,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,667.19 : 87,991.88 = 19,223.43 : x
  2. Step 2: Convert to fraction form
    58,667.19/87,991.88 = 19,223.43/x
  3. Step 3: Cross multiply
    58,667.19x = 87,991.88 × 19,223.43
  4. Step 4: Simplify right side
    58,667.19x = 1,691,505,649.63
  5. Step 5: Solve for x
    x = 1,691,505,649.63/58,667.19
  6. Step 6: Final answer
    x = 28,832.23

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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.