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Finding the Fourth Proportional to 62,918.33, 86,830.86 and 36,065.30

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Solution

The fourth proportional to 62,918.33, 86,830.86 and 36,065.30 is: 49,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,918.33 : 86,830.86 = 36,065.30 : x
  2. Step 2: Convert to fraction form
    62,918.33/86,830.86 = 36,065.30/x
  3. Step 3: Cross multiply
    62,918.33x = 86,830.86 × 36,065.30
  4. Step 4: Simplify right side
    62,918.33x = 3,131,580,581.00
  5. Step 5: Solve for x
    x = 3,131,580,581.00/62,918.33
  6. Step 6: Final answer
    x = 49,772.15

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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.