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Finding the Fourth Proportional to 5,108.90, 7,663.35 and 4,244.90

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Solution

The fourth proportional to 5,108.90, 7,663.35 and 4,244.90 is: 6,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.90 : 7,663.35 = 4,244.90 : x
  2. Step 2: Convert to fraction form
    5,108.90/7,663.35 = 4,244.90/x
  3. Step 3: Cross multiply
    5,108.90x = 7,663.35 × 4,244.90
  4. Step 4: Simplify right side
    5,108.90x = 32,530,154.42
  5. Step 5: Solve for x
    x = 32,530,154.42/5,108.90
  6. Step 6: Final answer
    x = 6,367.35

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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.