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Finding the Fourth Proportional to 55,361.76, 83,049.93 and 20,296.86

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Solution

The fourth proportional to 55,361.76, 83,049.93 and 20,296.86 is: 30,447.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361.76 : 83,049.93 = 20,296.86 : x
  2. Step 2: Convert to fraction form
    55,361.76/83,049.93 = 20,296.86/x
  3. Step 3: Cross multiply
    55,361.76x = 83,049.93 × 20,296.86
  4. Step 4: Simplify right side
    55,361.76x = 1,685,652,802.22
  5. Step 5: Solve for x
    x = 1,685,652,802.22/55,361.76
  6. Step 6: Final answer
    x = 30,447.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.