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Finding the Fourth Proportional to 62,491.40, 86,236.02 and 35,642.60

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Solution

The fourth proportional to 62,491.40, 86,236.02 and 35,642.60 is: 49,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,491.40 : 86,236.02 = 35,642.60 : x
  2. Step 2: Convert to fraction form
    62,491.40/86,236.02 = 35,642.60/x
  3. Step 3: Cross multiply
    62,491.40x = 86,236.02 × 35,642.60
  4. Step 4: Simplify right side
    62,491.40x = 3,073,675,966.45
  5. Step 5: Solve for x
    x = 3,073,675,966.45/62,491.40
  6. Step 6: Final answer
    x = 49,185.58

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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.