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Finding the Fourth Proportional to 55,373.94, 76,415.94 and 30,223.44

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Solution

The fourth proportional to 55,373.94, 76,415.94 and 30,223.44 is: 41,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,373.94 : 76,415.94 = 30,223.44 : x
  2. Step 2: Convert to fraction form
    55,373.94/76,415.94 = 30,223.44/x
  3. Step 3: Cross multiply
    55,373.94x = 76,415.94 × 30,223.44
  4. Step 4: Simplify right side
    55,373.94x = 2,309,552,577.63
  5. Step 5: Solve for x
    x = 2,309,552,577.63/55,373.94
  6. Step 6: Final answer
    x = 41,708.29

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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.