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Finding the Fourth Proportional to 5,482.60, 8,229.30 and 2,712.40

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Solution

The fourth proportional to 5,482.60, 8,229.30 and 2,712.40 is: 4,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,482.60 : 8,229.30 = 2,712.40 : x
  2. Step 2: Convert to fraction form
    5,482.60/8,229.30 = 2,712.40/x
  3. Step 3: Cross multiply
    5,482.60x = 8,229.30 × 2,712.40
  4. Step 4: Simplify right side
    5,482.60x = 22,321,153.32
  5. Step 5: Solve for x
    x = 22,321,153.32/5,482.60
  6. Step 6: Final answer
    x = 4,071.27

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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.