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Finding the Fourth Proportional to 62,495.64, 86,239.56 and 35,639.28

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Solution

The fourth proportional to 62,495.64, 86,239.56 and 35,639.28 is: 49,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,495.64 : 86,239.56 = 35,639.28 : x
  2. Step 2: Convert to fraction form
    62,495.64/86,239.56 = 35,639.28/x
  3. Step 3: Cross multiply
    62,495.64x = 86,239.56 × 35,639.28
  4. Step 4: Simplify right side
    62,495.64x = 3,073,515,825.92
  5. Step 5: Solve for x
    x = 3,073,515,825.92/62,495.64
  6. Step 6: Final answer
    x = 49,179.68

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1.5x scale

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.