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Finding the Fourth Proportional to 56,462.94, 84,685.14 and 20,941.02

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Solution

The fourth proportional to 56,462.94, 84,685.14 and 20,941.02 is: 31,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,462.94 : 84,685.14 = 20,941.02 : x
  2. Step 2: Convert to fraction form
    56,462.94/84,685.14 = 20,941.02/x
  3. Step 3: Cross multiply
    56,462.94x = 84,685.14 × 20,941.02
  4. Step 4: Simplify right side
    56,462.94x = 1,773,393,210.44
  5. Step 5: Solve for x
    x = 1,773,393,210.44/56,462.94
  6. Step 6: Final answer
    x = 31,408.09

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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.