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Finding the Fourth Proportional to 62,767.54, 86,618.25 and 35,916.64

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Solution

The fourth proportional to 62,767.54, 86,618.25 and 35,916.64 is: 49,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,767.54 : 86,618.25 = 35,916.64 : x
  2. Step 2: Convert to fraction form
    62,767.54/86,618.25 = 35,916.64/x
  3. Step 3: Cross multiply
    62,767.54x = 86,618.25 × 35,916.64
  4. Step 4: Simplify right side
    62,767.54x = 3,111,036,502.68
  5. Step 5: Solve for x
    x = 3,111,036,502.68/62,767.54
  6. Step 6: Final answer
    x = 49,564.42

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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.