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Finding the Fourth Proportional to 55,650.95, 76,809.89 and 51,167.60

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Solution

The fourth proportional to 55,650.95, 76,809.89 and 51,167.60 is: 70,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,650.95 : 76,809.89 = 51,167.60 : x
  2. Step 2: Convert to fraction form
    55,650.95/76,809.89 = 51,167.60/x
  3. Step 3: Cross multiply
    55,650.95x = 76,809.89 × 51,167.60
  4. Step 4: Simplify right side
    55,650.95x = 3,930,177,087.68
  5. Step 5: Solve for x
    x = 3,930,177,087.68/55,650.95
  6. Step 6: Final answer
    x = 70,621.93

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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.