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Finding the Fourth Proportional to 56,393.97, 84,592.32 and 18,954.57

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Solution

The fourth proportional to 56,393.97, 84,592.32 and 18,954.57 is: 28,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,393.97 : 84,592.32 = 18,954.57 : x
  2. Step 2: Convert to fraction form
    56,393.97/84,592.32 = 18,954.57/x
  3. Step 3: Cross multiply
    56,393.97x = 84,592.32 × 18,954.57
  4. Step 4: Simplify right side
    56,393.97x = 1,603,411,050.90
  5. Step 5: Solve for x
    x = 1,603,411,050.90/56,393.97
  6. Step 6: Final answer
    x = 28,432.31

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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.