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Finding the Fourth Proportional to 55,994.50, 77,274.03 and 30,845.62

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Solution

The fourth proportional to 55,994.50, 77,274.03 and 30,845.62 is: 42,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,994.50 : 77,274.03 = 30,845.62 : x
  2. Step 2: Convert to fraction form
    55,994.50/77,274.03 = 30,845.62/x
  3. Step 3: Cross multiply
    55,994.50x = 77,274.03 × 30,845.62
  4. Step 4: Simplify right side
    55,994.50x = 2,383,565,365.25
  5. Step 5: Solve for x
    x = 2,383,565,365.25/55,994.50
  6. Step 6: Final answer
    x = 42,567.85

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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.