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Finding the Fourth Proportional to 3,594.80, 5,381.40 and 3,162.80

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Solution

The fourth proportional to 3,594.80, 5,381.40 and 3,162.80 is: 4,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,594.80 : 5,381.40 = 3,162.80 : x
  2. Step 2: Convert to fraction form
    3,594.80/5,381.40 = 3,162.80/x
  3. Step 3: Cross multiply
    3,594.80x = 5,381.40 × 3,162.80
  4. Step 4: Simplify right side
    3,594.80x = 17,020,291.92
  5. Step 5: Solve for x
    x = 17,020,291.92/3,594.80
  6. Step 6: Final answer
    x = 4,734.70

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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.