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Finding the Fourth Proportional to 62,757.60, 86,601.60 and 34,457.28

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Solution

The fourth proportional to 62,757.60, 86,601.60 and 34,457.28 is: 47,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,757.60 : 86,601.60 = 34,457.28 : x
  2. Step 2: Convert to fraction form
    62,757.60/86,601.60 = 34,457.28/x
  3. Step 3: Cross multiply
    62,757.60x = 86,601.60 × 34,457.28
  4. Step 4: Simplify right side
    62,757.60x = 2,984,055,579.65
  5. Step 5: Solve for x
    x = 2,984,055,579.65/62,757.60
  6. Step 6: Final answer
    x = 47,548.91

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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.