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Finding the Fourth Proportional to 56,142.93, 84,224.93 and 18,705.27

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Solution

The fourth proportional to 56,142.93, 84,224.93 and 18,705.27 is: 28,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,142.93 : 84,224.93 = 18,705.27 : x
  2. Step 2: Convert to fraction form
    56,142.93/84,224.93 = 18,705.27/x
  3. Step 3: Cross multiply
    56,142.93x = 84,224.93 × 18,705.27
  4. Step 4: Simplify right side
    56,142.93x = 1,575,449,962.85
  5. Step 5: Solve for x
    x = 1,575,449,962.85/56,142.93
  6. Step 6: Final answer
    x = 28,061.41

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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.