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Finding the Fourth Proportional to 56,659.79, 78,207.00 and 37,796.87

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Solution

The fourth proportional to 56,659.79, 78,207.00 and 37,796.87 is: 52,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,659.79 : 78,207.00 = 37,796.87 : x
  2. Step 2: Convert to fraction form
    56,659.79/78,207.00 = 37,796.87/x
  3. Step 3: Cross multiply
    56,659.79x = 78,207.00 × 37,796.87
  4. Step 4: Simplify right side
    56,659.79x = 2,955,979,865.87
  5. Step 5: Solve for x
    x = 2,955,979,865.87/56,659.79
  6. Step 6: Final answer
    x = 52,170.68

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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.