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Finding the Fourth Proportional to 54,516.60, 81,731.70 and 29,892.60

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Solution

The fourth proportional to 54,516.60, 81,731.70 and 29,892.60 is: 44,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,516.60 : 81,731.70 = 29,892.60 : x
  2. Step 2: Convert to fraction form
    54,516.60/81,731.70 = 29,892.60/x
  3. Step 3: Cross multiply
    54,516.60x = 81,731.70 × 29,892.60
  4. Step 4: Simplify right side
    54,516.60x = 2,443,173,015.42
  5. Step 5: Solve for x
    x = 2,443,173,015.42/54,516.60
  6. Step 6: Final answer
    x = 44,815.21

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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.