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Finding the Fourth Proportional to 65,506.28, 90,396.26 and 35,697.64

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Solution

The fourth proportional to 65,506.28, 90,396.26 and 35,697.64 is: 49,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,506.28 : 90,396.26 = 35,697.64 : x
  2. Step 2: Convert to fraction form
    65,506.28/90,396.26 = 35,697.64/x
  3. Step 3: Cross multiply
    65,506.28x = 90,396.26 × 35,697.64
  4. Step 4: Simplify right side
    65,506.28x = 3,226,933,146.83
  5. Step 5: Solve for x
    x = 3,226,933,146.83/65,506.28
  6. Step 6: Final answer
    x = 49,261.43

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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.