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Finding the Fourth Proportional to 5,473.30, 8,211.15 and 1,774.90

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Solution

The fourth proportional to 5,473.30, 8,211.15 and 1,774.90 is: 2,662.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.30 : 8,211.15 = 1,774.90 : x
  2. Step 2: Convert to fraction form
    5,473.30/8,211.15 = 1,774.90/x
  3. Step 3: Cross multiply
    5,473.30x = 8,211.15 × 1,774.90
  4. Step 4: Simplify right side
    5,473.30x = 14,573,970.14
  5. Step 5: Solve for x
    x = 14,573,970.14/5,473.30
  6. Step 6: Final answer
    x = 2,662.74

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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.