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Finding the Fourth Proportional to 55,618.44, 76,764.12 and 43,494.90

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Solution

The fourth proportional to 55,618.44, 76,764.12 and 43,494.90 is: 60,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,618.44 : 76,764.12 = 43,494.90 : x
  2. Step 2: Convert to fraction form
    55,618.44/76,764.12 = 43,494.90/x
  3. Step 3: Cross multiply
    55,618.44x = 76,764.12 × 43,494.90
  4. Step 4: Simplify right side
    55,618.44x = 3,338,847,722.99
  5. Step 5: Solve for x
    x = 3,338,847,722.99/55,618.44
  6. Step 6: Final answer
    x = 60,031.31

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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.