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Finding the Fourth Proportional to 65,956.20, 91,051.08 and 37,656.42

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Solution

The fourth proportional to 65,956.20, 91,051.08 and 37,656.42 is: 51,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,956.20 : 91,051.08 = 37,656.42 : x
  2. Step 2: Convert to fraction form
    65,956.20/91,051.08 = 37,656.42/x
  3. Step 3: Cross multiply
    65,956.20x = 91,051.08 × 37,656.42
  4. Step 4: Simplify right side
    65,956.20x = 3,428,657,709.93
  5. Step 5: Solve for x
    x = 3,428,657,709.93/65,956.20
  6. Step 6: Final answer
    x = 51,983.86

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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.