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Finding the Fourth Proportional to 3,482.15, 5,223.20 and 885.08

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Solution

The fourth proportional to 3,482.15, 5,223.20 and 885.08 is: 1,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.15 : 5,223.20 = 885.08 : x
  2. Step 2: Convert to fraction form
    3,482.15/5,223.20 = 885.08/x
  3. Step 3: Cross multiply
    3,482.15x = 5,223.20 × 885.08
  4. Step 4: Simplify right side
    3,482.15x = 4,622,958.49
  5. Step 5: Solve for x
    x = 4,622,958.49/3,482.15
  6. Step 6: Final answer
    x = 1,327.62

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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.