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Finding the Fourth Proportional to 54,015.30, 80,877.15 and 54,015.30

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Solution

The fourth proportional to 54,015.30, 80,877.15 and 54,015.30 is: 80,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.30 : 80,877.15 = 54,015.30 : x
  2. Step 2: Convert to fraction form
    54,015.30/80,877.15 = 54,015.30/x
  3. Step 3: Cross multiply
    54,015.30x = 80,877.15 × 54,015.30
  4. Step 4: Simplify right side
    54,015.30x = 4,368,603,520.40
  5. Step 5: Solve for x
    x = 4,368,603,520.40/54,015.30
  6. Step 6: Final answer
    x = 80,877.15

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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.