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Finding the Fourth Proportional to 5,311.24, 7,968.12 and 1,801.18

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Solution

The fourth proportional to 5,311.24, 7,968.12 and 1,801.18 is: 2,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.24 : 7,968.12 = 1,801.18 : x
  2. Step 2: Convert to fraction form
    5,311.24/7,968.12 = 1,801.18/x
  3. Step 3: Cross multiply
    5,311.24x = 7,968.12 × 1,801.18
  4. Step 4: Simplify right side
    5,311.24x = 14,352,018.38
  5. Step 5: Solve for x
    x = 14,352,018.38/5,311.24
  6. Step 6: Final answer
    x = 2,702.20

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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.