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Finding the Fourth Proportional to 55,407.44, 76,465.12 and 33,890.44

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Solution

The fourth proportional to 55,407.44, 76,465.12 and 33,890.44 is: 46,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,407.44 : 76,465.12 = 33,890.44 : x
  2. Step 2: Convert to fraction form
    55,407.44/76,465.12 = 33,890.44/x
  3. Step 3: Cross multiply
    55,407.44x = 76,465.12 × 33,890.44
  4. Step 4: Simplify right side
    55,407.44x = 2,591,436,561.45
  5. Step 5: Solve for x
    x = 2,591,436,561.45/55,407.44
  6. Step 6: Final answer
    x = 46,770.55

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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.