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Finding the Fourth Proportional to 54,603.77, 75,340.73 and 30,721.73

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Solution

The fourth proportional to 54,603.77, 75,340.73 and 30,721.73 is: 42,388.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,603.77 : 75,340.73 = 30,721.73 : x
  2. Step 2: Convert to fraction form
    54,603.77/75,340.73 = 30,721.73/x
  3. Step 3: Cross multiply
    54,603.77x = 75,340.73 × 30,721.73
  4. Step 4: Simplify right side
    54,603.77x = 2,314,597,565.06
  5. Step 5: Solve for x
    x = 2,314,597,565.06/54,603.77
  6. Step 6: Final answer
    x = 42,388.97

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1.5x scale

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.