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Finding the Fourth Proportional to 3,482.62, 5,223.95 and 885.56

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Solution

The fourth proportional to 3,482.62, 5,223.95 and 885.56 is: 1,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.62 : 5,223.95 = 885.56 : x
  2. Step 2: Convert to fraction form
    3,482.62/5,223.95 = 885.56/x
  3. Step 3: Cross multiply
    3,482.62x = 5,223.95 × 885.56
  4. Step 4: Simplify right side
    3,482.62x = 4,626,116.73
  5. Step 5: Solve for x
    x = 4,626,116.73/3,482.62
  6. Step 6: Final answer
    x = 1,328.35

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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.