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Finding the Fourth Proportional to 58,821.93, 88,209.54 and 21,361.57

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Solution

The fourth proportional to 58,821.93, 88,209.54 and 21,361.57 is: 32,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,821.93 : 88,209.54 = 21,361.57 : x
  2. Step 2: Convert to fraction form
    58,821.93/88,209.54 = 21,361.57/x
  3. Step 3: Cross multiply
    58,821.93x = 88,209.54 × 21,361.57
  4. Step 4: Simplify right side
    58,821.93x = 1,884,294,042.85
  5. Step 5: Solve for x
    x = 1,884,294,042.85/58,821.93
  6. Step 6: Final answer
    x = 32,033.87

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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.