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Finding the Fourth Proportional to 56,340.80, 84,372.96 and 37,816.64

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Solution

The fourth proportional to 56,340.80, 84,372.96 and 37,816.64 is: 56,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,340.80 : 84,372.96 = 37,816.64 : x
  2. Step 2: Convert to fraction form
    56,340.80/84,372.96 = 37,816.64/x
  3. Step 3: Cross multiply
    56,340.80x = 84,372.96 × 37,816.64
  4. Step 4: Simplify right side
    56,340.80x = 3,190,701,854.05
  5. Step 5: Solve for x
    x = 3,190,701,854.05/56,340.80
  6. Step 6: Final answer
    x = 56,632.17

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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.