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Finding the Fourth Proportional to 56,791.80, 78,366.96 and 32,925.96

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Solution

The fourth proportional to 56,791.80, 78,366.96 and 32,925.96 is: 45,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,791.80 : 78,366.96 = 32,925.96 : x
  2. Step 2: Convert to fraction form
    56,791.80/78,366.96 = 32,925.96/x
  3. Step 3: Cross multiply
    56,791.80x = 78,366.96 × 32,925.96
  4. Step 4: Simplify right side
    56,791.80x = 2,580,307,390.28
  5. Step 5: Solve for x
    x = 2,580,307,390.28/56,791.80
  6. Step 6: Final answer
    x = 45,434.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.