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Finding the Fourth Proportional to 62,812.70, 94,160.49 and 21,230.62

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Solution

The fourth proportional to 62,812.70, 94,160.49 and 21,230.62 is: 31,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,812.70 : 94,160.49 = 21,230.62 : x
  2. Step 2: Convert to fraction form
    62,812.70/94,160.49 = 21,230.62/x
  3. Step 3: Cross multiply
    62,812.70x = 94,160.49 × 21,230.62
  4. Step 4: Simplify right side
    62,812.70x = 1,999,085,582.20
  5. Step 5: Solve for x
    x = 1,999,085,582.20/62,812.70
  6. Step 6: Final answer
    x = 31,826.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.