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Finding the Fourth Proportional to 35,490.34, 48,976.93 and 19,574.38

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Solution

The fourth proportional to 35,490.34, 48,976.93 and 19,574.38 is: 27,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.34 : 48,976.93 = 19,574.38 : x
  2. Step 2: Convert to fraction form
    35,490.34/48,976.93 = 19,574.38/x
  3. Step 3: Cross multiply
    35,490.34x = 48,976.93 × 19,574.38
  4. Step 4: Simplify right side
    35,490.34x = 958,693,039.05
  5. Step 5: Solve for x
    x = 958,693,039.05/35,490.34
  6. Step 6: Final answer
    x = 27,012.79

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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.