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Finding the Fourth Proportional to 62,882.64, 86,814 and 41,690.70

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Solution

The fourth proportional to 62,882.64, 86,814 and 41,690.70 is: 57,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,882.64 : 86,814 = 41,690.70 : x
  2. Step 2: Convert to fraction form
    62,882.64/86,814 = 41,690.70/x
  3. Step 3: Cross multiply
    62,882.64x = 86,814 × 41,690.70
  4. Step 4: Simplify right side
    62,882.64x = 3,619,336,429.80
  5. Step 5: Solve for x
    x = 3,619,336,429.80/62,882.64
  6. Step 6: Final answer
    x = 57,557.01

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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.