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Finding the Fourth Proportional to 58,563, 87,791.04 and 21,092.40

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Solution

The fourth proportional to 58,563, 87,791.04 and 21,092.40 is: 31,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,563 : 87,791.04 = 21,092.40 : x
  2. Step 2: Convert to fraction form
    58,563/87,791.04 = 21,092.40/x
  3. Step 3: Cross multiply
    58,563x = 87,791.04 × 21,092.40
  4. Step 4: Simplify right side
    58,563x = 1,851,723,732.10
  5. Step 5: Solve for x
    x = 1,851,723,732.10/58,563
  6. Step 6: Final answer
    x = 31,619.35

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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.