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Finding the Fourth Proportional to 35,286.48, 48,696.40 and 19,372

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Solution

The fourth proportional to 35,286.48, 48,696.40 and 19,372 is: 26,733.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,286.48 : 48,696.40 = 19,372 : x
  2. Step 2: Convert to fraction form
    35,286.48/48,696.40 = 19,372/x
  3. Step 3: Cross multiply
    35,286.48x = 48,696.40 × 19,372
  4. Step 4: Simplify right side
    35,286.48x = 943,346,660.80
  5. Step 5: Solve for x
    x = 943,346,660.80/35,286.48
  6. Step 6: Final answer
    x = 26,733.94

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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.