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Finding the Fourth Proportional to 2,195.64, 3,290.94 and 895.50

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Solution

The fourth proportional to 2,195.64, 3,290.94 and 895.50 is: 1,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.64 : 3,290.94 = 895.50 : x
  2. Step 2: Convert to fraction form
    2,195.64/3,290.94 = 895.50/x
  3. Step 3: Cross multiply
    2,195.64x = 3,290.94 × 895.50
  4. Step 4: Simplify right side
    2,195.64x = 2,947,036.77
  5. Step 5: Solve for x
    x = 2,947,036.77/2,195.64
  6. Step 6: Final answer
    x = 1,342.22

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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.