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Finding the Fourth Proportional to 58,438.09, 87,734.90 and 30,755.53

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Solution

The fourth proportional to 58,438.09, 87,734.90 and 30,755.53 is: 46,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,438.09 : 87,734.90 = 30,755.53 : x
  2. Step 2: Convert to fraction form
    58,438.09/87,734.90 = 30,755.53/x
  3. Step 3: Cross multiply
    58,438.09x = 87,734.90 × 30,755.53
  4. Step 4: Simplify right side
    58,438.09x = 2,698,333,349.00
  5. Step 5: Solve for x
    x = 2,698,333,349.00/58,438.09
  6. Step 6: Final answer
    x = 46,174.22

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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.