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Finding the Fourth Proportional to 55,873.13, 83,791.80 and 18,424.80

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Solution

The fourth proportional to 55,873.13, 83,791.80 and 18,424.80 is: 27,631.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,873.13 : 83,791.80 = 18,424.80 : x
  2. Step 2: Convert to fraction form
    55,873.13/83,791.80 = 18,424.80/x
  3. Step 3: Cross multiply
    55,873.13x = 83,791.80 × 18,424.80
  4. Step 4: Simplify right side
    55,873.13x = 1,543,847,156.64
  5. Step 5: Solve for x
    x = 1,543,847,156.64/55,873.13
  6. Step 6: Final answer
    x = 27,631.30

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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.