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Finding the Fourth Proportional to 54,603.33, 75,355.02 and 30,731.55

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Solution

The fourth proportional to 54,603.33, 75,355.02 and 30,731.55 is: 42,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,603.33 : 75,355.02 = 30,731.55 : x
  2. Step 2: Convert to fraction form
    54,603.33/75,355.02 = 30,731.55/x
  3. Step 3: Cross multiply
    54,603.33x = 75,355.02 × 30,731.55
  4. Step 4: Simplify right side
    54,603.33x = 2,315,776,564.88
  5. Step 5: Solve for x
    x = 2,315,776,564.88/54,603.33
  6. Step 6: Final answer
    x = 42,410.90

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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.