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Finding the Fourth Proportional to 58,405.64, 80,606.12 and 35,759.88

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Solution

The fourth proportional to 58,405.64, 80,606.12 and 35,759.88 is: 49,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,405.64 : 80,606.12 = 35,759.88 : x
  2. Step 2: Convert to fraction form
    58,405.64/80,606.12 = 35,759.88/x
  3. Step 3: Cross multiply
    58,405.64x = 80,606.12 × 35,759.88
  4. Step 4: Simplify right side
    58,405.64x = 2,882,465,178.47
  5. Step 5: Solve for x
    x = 2,882,465,178.47/58,405.64
  6. Step 6: Final answer
    x = 49,352.51

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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.