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Finding the Fourth Proportional to 58,354.21, 87,390.99 and 33,318.37

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Solution

The fourth proportional to 58,354.21, 87,390.99 and 33,318.37 is: 49,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,354.21 : 87,390.99 = 33,318.37 : x
  2. Step 2: Convert to fraction form
    58,354.21/87,390.99 = 33,318.37/x
  3. Step 3: Cross multiply
    58,354.21x = 87,390.99 × 33,318.37
  4. Step 4: Simplify right side
    58,354.21x = 2,911,725,695.95
  5. Step 5: Solve for x
    x = 2,911,725,695.95/58,354.21
  6. Step 6: Final answer
    x = 49,897.44

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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.