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Finding the Fourth Proportional to 62,492.49, 86,243.45 and 35,640.18

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Solution

The fourth proportional to 62,492.49, 86,243.45 and 35,640.18 is: 49,185.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,492.49 : 86,243.45 = 35,640.18 : x
  2. Step 2: Convert to fraction form
    62,492.49/86,243.45 = 35,640.18/x
  3. Step 3: Cross multiply
    62,492.49x = 86,243.45 × 35,640.18
  4. Step 4: Simplify right side
    62,492.49x = 3,073,731,903.62
  5. Step 5: Solve for x
    x = 3,073,731,903.62/62,492.49
  6. Step 6: Final answer
    x = 49,185.62

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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.