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Finding the Fourth Proportional to 3,569.45, 5,354.46 and 936.95

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Solution

The fourth proportional to 3,569.45, 5,354.46 and 936.95 is: 1,405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.45 : 5,354.46 = 936.95 : x
  2. Step 2: Convert to fraction form
    3,569.45/5,354.46 = 936.95/x
  3. Step 3: Cross multiply
    3,569.45x = 5,354.46 × 936.95
  4. Step 4: Simplify right side
    3,569.45x = 5,016,834.52
  5. Step 5: Solve for x
    x = 5,016,834.52/3,569.45
  6. Step 6: Final answer
    x = 1,405.49

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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.