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Finding the Fourth Proportional to 35,369.80, 48,795.92 and 20,053.12

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Solution

The fourth proportional to 35,369.80, 48,795.92 and 20,053.12 is: 27,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,369.80 : 48,795.92 = 20,053.12 : x
  2. Step 2: Convert to fraction form
    35,369.80/48,795.92 = 20,053.12/x
  3. Step 3: Cross multiply
    35,369.80x = 48,795.92 × 20,053.12
  4. Step 4: Simplify right side
    35,369.80x = 978,510,200.72
  5. Step 5: Solve for x
    x = 978,510,200.72/35,369.80
  6. Step 6: Final answer
    x = 27,665.14

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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.