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Finding the Fourth Proportional to 35,065.08, 48,390.14 and 19,957

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Solution

The fourth proportional to 35,065.08, 48,390.14 and 19,957 is: 27,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,065.08 : 48,390.14 = 19,957 : x
  2. Step 2: Convert to fraction form
    35,065.08/48,390.14 = 19,957/x
  3. Step 3: Cross multiply
    35,065.08x = 48,390.14 × 19,957
  4. Step 4: Simplify right side
    35,065.08x = 965,722,023.98
  5. Step 5: Solve for x
    x = 965,722,023.98/35,065.08
  6. Step 6: Final answer
    x = 27,540.85

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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.