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Finding the Fourth Proportional to 5,367.80, 8,051.70 and 5,329.40

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Solution

The fourth proportional to 5,367.80, 8,051.70 and 5,329.40 is: 7,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.80 : 8,051.70 = 5,329.40 : x
  2. Step 2: Convert to fraction form
    5,367.80/8,051.70 = 5,329.40/x
  3. Step 3: Cross multiply
    5,367.80x = 8,051.70 × 5,329.40
  4. Step 4: Simplify right side
    5,367.80x = 42,910,729.98
  5. Step 5: Solve for x
    x = 42,910,729.98/5,367.80
  6. Step 6: Final answer
    x = 7,994.10

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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.