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Finding the Fourth Proportional to 55,473.87, 76,553.89 and 29,980.22

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Solution

The fourth proportional to 55,473.87, 76,553.89 and 29,980.22 is: 41,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,473.87 : 76,553.89 = 29,980.22 : x
  2. Step 2: Convert to fraction form
    55,473.87/76,553.89 = 29,980.22/x
  3. Step 3: Cross multiply
    55,473.87x = 76,553.89 × 29,980.22
  4. Step 4: Simplify right side
    55,473.87x = 2,295,102,464.06
  5. Step 5: Solve for x
    x = 2,295,102,464.06/55,473.87
  6. Step 6: Final answer
    x = 41,372.68

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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.