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Finding the Fourth Proportional to 58,577.74, 87,848.43 and 21,132.94

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Solution

The fourth proportional to 58,577.74, 87,848.43 and 21,132.94 is: 31,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,577.74 : 87,848.43 = 21,132.94 : x
  2. Step 2: Convert to fraction form
    58,577.74/87,848.43 = 21,132.94/x
  3. Step 3: Cross multiply
    58,577.74x = 87,848.43 × 21,132.94
  4. Step 4: Simplify right side
    58,577.74x = 1,856,495,367.65
  5. Step 5: Solve for x
    x = 1,856,495,367.65/58,577.74
  6. Step 6: Final answer
    x = 31,692.85

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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.