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Finding the Fourth Proportional to 35,473.39, 48,961.81 and 21,323.50

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Solution

The fourth proportional to 35,473.39, 48,961.81 and 21,323.50 is: 29,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,473.39 : 48,961.81 = 21,323.50 : x
  2. Step 2: Convert to fraction form
    35,473.39/48,961.81 = 21,323.50/x
  3. Step 3: Cross multiply
    35,473.39x = 48,961.81 × 21,323.50
  4. Step 4: Simplify right side
    35,473.39x = 1,044,037,102.23
  5. Step 5: Solve for x
    x = 1,044,037,102.23/35,473.39
  6. Step 6: Final answer
    x = 29,431.56

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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.