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Finding the Fourth Proportional to 60,702.10, 91,049.90 and 18,582.20

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Solution

The fourth proportional to 60,702.10, 91,049.90 and 18,582.20 is: 27,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,702.10 : 91,049.90 = 18,582.20 : x
  2. Step 2: Convert to fraction form
    60,702.10/91,049.90 = 18,582.20/x
  3. Step 3: Cross multiply
    60,702.10x = 91,049.90 × 18,582.20
  4. Step 4: Simplify right side
    60,702.10x = 1,691,907,451.78
  5. Step 5: Solve for x
    x = 1,691,907,451.78/60,702.10
  6. Step 6: Final answer
    x = 27,872.31

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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.