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Finding the Fourth Proportional to 62,428.56, 86,148.88 and 35,568.79

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Solution

The fourth proportional to 62,428.56, 86,148.88 and 35,568.79 is: 49,083.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,428.56 : 86,148.88 = 35,568.79 : x
  2. Step 2: Convert to fraction form
    62,428.56/86,148.88 = 35,568.79/x
  3. Step 3: Cross multiply
    62,428.56x = 86,148.88 × 35,568.79
  4. Step 4: Simplify right side
    62,428.56x = 3,064,211,317.24
  5. Step 5: Solve for x
    x = 3,064,211,317.24/62,428.56
  6. Step 6: Final answer
    x = 49,083.49

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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.