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Finding the Fourth Proportional to 63,018.92, 86,965.57 and 34,724

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Solution

The fourth proportional to 63,018.92, 86,965.57 and 34,724 is: 47,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018.92 : 86,965.57 = 34,724 : x
  2. Step 2: Convert to fraction form
    63,018.92/86,965.57 = 34,724/x
  3. Step 3: Cross multiply
    63,018.92x = 86,965.57 × 34,724
  4. Step 4: Simplify right side
    63,018.92x = 3,019,792,452.68
  5. Step 5: Solve for x
    x = 3,019,792,452.68/63,018.92
  6. Step 6: Final answer
    x = 47,918.82

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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.