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Finding the Fourth Proportional to 54,995.60, 82,493.40 and 13,442.60

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Solution

The fourth proportional to 54,995.60, 82,493.40 and 13,442.60 is: 20,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,995.60 : 82,493.40 = 13,442.60 : x
  2. Step 2: Convert to fraction form
    54,995.60/82,493.40 = 13,442.60/x
  3. Step 3: Cross multiply
    54,995.60x = 82,493.40 × 13,442.60
  4. Step 4: Simplify right side
    54,995.60x = 1,108,925,778.84
  5. Step 5: Solve for x
    x = 1,108,925,778.84/54,995.60
  6. Step 6: Final answer
    x = 20,163.90

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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.