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Finding the Fourth Proportional to 49,696.60, 74,447.70 and 29,916.40

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Solution

The fourth proportional to 49,696.60, 74,447.70 and 29,916.40 is: 44,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,696.60 : 74,447.70 = 29,916.40 : x
  2. Step 2: Convert to fraction form
    49,696.60/74,447.70 = 29,916.40/x
  3. Step 3: Cross multiply
    49,696.60x = 74,447.70 × 29,916.40
  4. Step 4: Simplify right side
    49,696.60x = 2,227,207,172.28
  5. Step 5: Solve for x
    x = 2,227,207,172.28/49,696.60
  6. Step 6: Final answer
    x = 44,816.09

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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.