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Finding the Fourth Proportional to 35,465.86, 48,942.90 and 19,550.66

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Solution

The fourth proportional to 35,465.86, 48,942.90 and 19,550.66 is: 26,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,465.86 : 48,942.90 = 19,550.66 : x
  2. Step 2: Convert to fraction form
    35,465.86/48,942.90 = 19,550.66/x
  3. Step 3: Cross multiply
    35,465.86x = 48,942.90 × 19,550.66
  4. Step 4: Simplify right side
    35,465.86x = 956,865,997.31
  5. Step 5: Solve for x
    x = 956,865,997.31/35,465.86
  6. Step 6: Final answer
    x = 26,979.92

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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.