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Finding the Fourth Proportional to 54,157.59, 81,228.87 and 16,718.90

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Solution

The fourth proportional to 54,157.59, 81,228.87 and 16,718.90 is: 25,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,157.59 : 81,228.87 = 16,718.90 : x
  2. Step 2: Convert to fraction form
    54,157.59/81,228.87 = 16,718.90/x
  3. Step 3: Cross multiply
    54,157.59x = 81,228.87 × 16,718.90
  4. Step 4: Simplify right side
    54,157.59x = 1,358,057,354.64
  5. Step 5: Solve for x
    x = 1,358,057,354.64/54,157.59
  6. Step 6: Final answer
    x = 25,076.03

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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.